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4 years ago

7

(x-3)(x2+2x+7) Simplified

1 answer:

ololo11 [35]4 years ago

6 0

Answer:

x3-x2+x-21

Step-by-step explanation:

x3+2x2+7x-3x2-6x-21

combine like terms

x3-x2+x-21

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PLEASE HELP!!! I NEED THE ANSWER SOON :)

densk [106]

$y=2x \newline y= x^{2} -3$

Substitue 2x for y in the second equation:

$2x= x^{2} -3$

Rearrange to $a x^{2} +bx+c=0$ form:

$x^{2} -2x-3=0$

Factor:

$(x-3)(x+1)=0$

Zeros are $x=3$ and $x=-1$

To find y-coordinates of pts of intersection, plug these x-values into first equation to get $y=-2$ and $y=6$

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3 years ago

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Doss [256]

Answer:

Yes, because by dividing x by his equivalent y, you find a constant of proportionality being 10.

x / y = 10

Step-by-step explanation:

20 / 2 = 10

50 / 5 =10

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3 years ago

What is the volume, in cubic in, of a cylinder with a height of 8 in and a base radius of

densk [106]

Answer:

V=100.5

Step-by-step explanation:

hopes this helps

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3 years ago

A model of a famous statue is 1 1/2 inches tall. The actual statues is 3 3/4 feet tall. What is the ratio of the height of the m

Fittoniya [83]

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4 years ago

How many tens are in 120,000

Marina CMI [18]

12000
Just do
120000 divided by 10

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4 years ago

Read 2 more answers