The binomial (x+2) is a factor of ?

1). 2x^{2} -5+3
2). x^{2} +5x+18
3). x^{3} +5x^{2} + 18
4). x^{3} +5x+18

Answers

Answer 1

Answer:

4). [tex] x^{3} +5x+18 [/tex]

Step-by-step explanation:

The binomial (x+2) is a factor of [tex] x^{3} +5x+18. [/tex]

Since, (x + 2) is a factor.

So, x = - 2 is a root

Plug x = - 2 in [tex] x^{3} +5x+18 [/tex]

We find:

[tex] x^{3} +5x+18 [/tex]

[tex] =(-2)^{3} +5(-2)+18 [/tex]

[tex] =-8 - 10+18 [/tex]

[tex] = - 18+18 [/tex]

[tex] = 0 [/tex]

Since, at x = - 2 the value of the expression [tex] x^{3} +5x+18 [/tex] becomes zero.

Therefore, (x + 2) is a factor of [tex] x^{3} +5x+18 [/tex]


Related Questions

value of m= 2
3m square - 2m - 7

Answers

Answer:

11m

Step-by-step explanation:

write a rule for the function​

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Answer:-18

Step-by-step explanation: i know evertyhing

Help me please:( I need it

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Answer:

y = 18

Step-by-step explanation:

30² = 24²  + y²

900 = 576 + y²

y = [tex]\sqrt{324}[/tex]

y = 18

List the ordered pairs shown in the mapping diagram

Answers

Answer:

(0,4)

(1,6)

(2,8)

(3,1)

(4,0)

The required ordered pair mentioned in the mapping diagram is (0,4), (1,6), (2,8), (3,1), and (4,0).

What is coordinate?

Coordinate, is represented as the values on the x-axis and y-axis of the graph. while the coordinate x is called abscissa and the coordinate of the y is called ordinate.

What is a mapping diagram?

A mapping diagram is used to illustrate the relationship between sets of domains and ranges.

here,
From the mapping diagram,
Each arrow represents the ordered pairs,
So,
The ordered pair is given as,
(0,4), (1,6), (2,8), (3,1), and (4,0)


Thus, the required ordered pair mentioned in the mapping diagram are (0,4), (1,6), (2,8), (3,1), and (4,0).

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Find the value of x.
56°
57°
85
2x
4x

Answers

Answer:

56

Step-by-step explanation:

Simplifying

x + 7x = 56 + 8

Combine like terms: x + 7x = 8x

8x = 56 + 8

Combine like terms: 56 + 8 = 64

8x = 64

Solving

8x = 64

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '8'.

x = 8

Simplifying

x = 8

10) using opposite operations solve for x

30 = - 6 x + 12

Answers

X=-3 that’s the answer your welcome

5/8 + 3/4 divide by -2/3 - 5/6

Answers

Answer: -4/3

Step-by-step explanation: hope this helps :)

I dont understand how to do this, looking for someone who can help

Answers

the answer should be a segment. have a great day :)))

can someone please help on this question

Answers

Should be -1.8 your welcome
-1.2
I think it’s that answer because I asked my dad, I’m still 5th grade so I didn’t take those stuff yet but I hope I have helped you

What is the difference between vertical and horizontal lines?

Answers

Answer:

A vertical line is any line parallel to the vertical direction. A horizontal line is any line normal to a vertical line. Horizontal lines do not cross each other.

hi! horizontal goes down _____, vertical goes up |

hope this helps!

Solve for h and explain your answer in terms of the original statement of the mountain
problem.

Answers

To find h you subtract 821 from 5323 to find the unknown number that is the same as h. Once u subtract 5323-821 you get 4,502. H= 4502

Choose an algebraic expression for: 9 more than w

Group of answer choices

A. w +9

B. 9-w

C. w/ 9

D. 9w

Answers

The answer is a.w+9 because it means the w plus 9 more it the same as 9 more than w

can anyone please answer this if you can i’m confused

Answers

Answer:

Ge I Joe 02 04 Soccer balls height

Please helpppppppppo

Answers

Good luckkkkkkkkkkk!!!!

14/17 as a decimal to the nearest tenth

Answers

Answer:

.8

Step-by-step explanation:

14/17 as a decimal is 0.82352941176

we only need to know what its the hundredths and tenths place so we then just round to thenearest tenth so 2 is less than 5 so 8 stays the same therefor out answer is .8

I need help it’s only one question

Answers

Answers and Step-by-step explanations:

9:  (4/6) (-5/8)  

This is just multiplication of fractions, so all you need to do is multiply both numerators by eachother and both denominators by eachother.  Assuming that only the 5 is negative, (this is just an assumption since it's not clear which one is, or you can do the 8,)  You get -20/48, since 4 x (-5) = -20, and 6 x 8 = 48.  Simplify and you get -5/12.  

10:  (3/4) (-1/5)  

Multiply the numerators, (3 and -1), and the denominators, (4 and 5,) to get -3/20.  This is the lowest it can be simplified to, so therefore your answer is -3/20.  

11.  (-1/8) (-6/7)  

Multiply -1 and -6 to get 6, (since two negatives make a positive.)  Multiply the denominators, (8 and 7,) to get 56.  This maks 6/56, which simplifies to 3/28.  

12.  (-4/9) (1/5)  

Multiply the numerators, (-4 and 1,) to get -4.  Multiply the denominators (9 and 5,) to get 45.  Your answer is -4/45.    

I'm really sorry if I'm wrong for anything, hope this helps!  :)

At midnight, the temperature in a city was 5 degrees Celsius. The temperature was dropping at a steady rate of 2 degrees Celsius per hour.

Write an inequality that represents t, the number of hours past midnight, when the temperature was colder than -4 degrees Celsius. Explain or show your reasoning.
Show all the values of t that make your inequality true on a number line, like the one shown below.
A number line with the numbers negative 4 through 10, in increments of 2, indicated.

Answers

Answer:

(5-2t)<-4

Step-by-step explanation:

The temperature is 5 °C at midnight, and it is dropping at a speed of 2 °C each hour. If it's past midnight, the temperature will be t degrees after t hours ( 5 - 2t ). If the temperature is below - 4 ℃, the inequality can be  ( 5-2t ) - 4

Lynn is making a snack. The recipes call for 3/8 cup of water for oats and 1/4 cup of water for dried fruit. She only has 1 cup of water. Does she have enough to make her snack? Explain

Answers

Answer: She has enough.

Step-by-step explanation:

You need to add up the quantities of water needed first. That will then tell if she has enough water.

Convert the fractions to decimals then add them up:

3/8 = 0.375

1/4 = 0.25

= 0.25 + 0.375

= 0.625 cups of water is required.

This is less than the 1 cup she has so she has enough water to make the snack.

can someone please help with this? will give brainliest

Answers

Answer:

0.004

Step-by-step explanation:

Just mutiply and divide by 2

Evaluate P(5, 3).
1. 15
2. 20
3. 60

Answers

The answer is option 3 - 60

Hi! Could you help me me out and solve these two problems? "eight less than the product of seven and xxx", and "the sum of six and the product of three and d". Thank you!

Answers

Given:

The given statement are:

a. Eight less than the product of seven and x.

b. The sum of six and the product of three and d.

To find:

The expression for the given statements.

Solution:

a.

Product of 7 and x is 7×x = 7x.

Eight less than the product of seven and x is 7x - 8.

Therefore, the required expression for the statement "Eight less than the product of seven and x" is 7x-8.

b.

Product of 3 and d is 3×d = 3d.

The sum of six and the product of three and d is 6+3d.

Therefore, the required expression for the statement "The sum of six and the product of three and d" is 6+3d.

Write the equation in standard form using integers.
y = - 2/3x -5
The equation in standard form is

Answers

The Answer is: 2x+3y=-15

Find the area of the triangles put together.

Answers

Answer:

i might be compltely wrong but i am geting 24

Step-by-step explanation:i probply am wrong

25% of 120 = ......% of 40. What is the missing number?

Answers

Answer:

75%

Step-by-step explanation:

25% of 120=120÷4=3

30/40=75%

Check:

75% of 40=30

help on this question plss!

Answers

adding 4 to both side is wrong he has to be subtract 4 to both side

Answer:

adding 4 to both sides. first option.

Step-by-step explanation:

four should have been subtracted, as it is not negative

y=-6x-4 as integer form

Answers

Answer:

y=-24

Step-by-step explanation:

hope this will help you

The ratio of lemons to lime in a punch is 6:4. If there are 35 fruit in the punch, how many of them are lemons?

Answers

Answer:

21 lemons

Step-by-step explanation:

If the ratio is 6:4, the ratio is also equal to 3:2. This means, for every 3 lemons, there are two limes.

So, if there are 35 lemons and limes in total, we would have 21 lemons and 14 limes.

Let me know if this helps!

Use the distributive property to find the value of x.

-1.2(3 – x) = -1.8

-3.6 + 1.2x = -1.8

1.2x = 1.8

X= ?

Answers

Answer:

1.5

Step-by-step explanation:

-1.2(3-×)=-1.8

-3.6+1.2×=-1.8

1.2×=3.6-1.8

1.2×=1.8

1.2/1.2×=1.8/1.2

×=1.5

Use the interactive graph below to sketch a graph of y = -2 • 3^x + 5.

Answers

Answer:d = rand(20);

figure(1)

imagesc(d)

text(5, 22, sprintf('\\uparrow\nLTO'), 'HorizontalAlignment','center', 'FontWeight','bold')

Step-by-step explanation:

i know

The graph of the function is attached.

What is an exponential graph?

A curve that depicts an exponential function is known as an exponential graph. A curve with a horizontal asymptote and either an increasing slope or a decreasing slope called an exponential graph. i.e., it begins as a horizontal line, increases or drops gradually, and then the growth or decay accelerates.

Given the graph of function,

The graph of any exponential function is parallel to an  axis and drop and increase show the decay or growth,

since the  equation,

y = -2(3ˣ) + 5

has a negative sign the graph will go down,

y-intercept for the graph is 3,

when x = 0, y = 3

and the graph will be in the fourth quadrant.

Hence the graph will be in the fourth quadrant.

Learn more about exponential graph;

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whats is 17 1/4 plus 7/8​

Answers

Answer:

I love Math anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

i looked it up n got 18.125.
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