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2 years ago

14

(Picture) MULTIPLYING POLYNOMIALS AND SIMPLIFYING EXPRESSIONS PLEASE HELP!!!!

1 answer:

SashulF [63]2 years ago

5 0

Answer:

(x + 2)(x² - 2x +4)

Step-by-step explanation:

The sum of cubes factors as ...

(a³ +b³) = (a +b)(a² -ab +b²)

Here, you have a=x, b=2, so the factorization is ...

x³ +8 = (x +2)(x² -2x +4) . . . . . . matches the first selection

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How to factor 2n^2+3n-9 without splitting the middle term

kozerog [31]

$2n^2+3n-9= \\\\ a=2 \\ b=3 \\ c=-9 \\\\ \Delta= 3^2-4*2*(-9)=9+72\to\boxed{81} \\\\ x_1;x_2=\frac{-3 +\-\sqrt{81}}{2*2}= \frac{-3+/- 9}{4} \\\\ x_1=\frac{-3+9}{4}=\frac{6}{4}\to\boxed{\frac{3}{2}} \\\\ x_2=\frac{-3-9}{4}=\frac{-12}{4}\to\boxed{-4} \\\\ 2n^2+3n-9=(x-\frac{3}{2})(\x+4)$

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2 years ago

what is f(x) = 2x2 28x – 5 written in vertex form? a.f(x) = 2(x 7)2 – 19 b.f(x) = 2(x 7)2 – 103 c.f(x) = 2(x 14)2 – 14 d.f(x) =

AlekseyPX

Hello,
++++++++++++++++++
Answer B
++++++++++++++++++
2x²+28x-5=2(x²+2*7x+49)-5-2*49=2(x+7)²-103
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5 0

3 years ago

Read 2 more answers

6m^2 + 7n<br>Identify the constant, variable, and terms

Leokris [45]

<h3>Answer:</h3>

<u>Given equation</u> :- 6m² + 7n

where,

<u>Constant</u> = 0.
<u>Variable</u> = m, n.
<u>Terms</u> = 6m² , 7n.

6 0

2 years ago

A man diving from a platform 30 feet above the water descends 18 feet below the surface. He then sims to the surface how far has

netineya [11]

I think it is 66 not for sure tho thats my answer <span />

8 0

2 years ago

12 pots cost $27 . what is the cost of 8 pots?

Alborosie

Answer:

$18

Step-by-step explanation:

you divide 27/12= 2.25 this gives you the price for one.

then you multiply 8 × 2.25 = $18

$18 dollars is the price for 8 pots

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2 years ago