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kherson [118]
2 years ago
5

Help me asap!! PLS I RLLY NEED IT

Mathematics
1 answer:
Dvinal [7]2 years ago
7 0

Answer:

Step-by-step explanation:

A.27 (aka 3x3x3)

B.7x7x7x7

C4x4x4x4x4x4x4

D.5x5x5x5x5x5

E.9x9x9

F.8x8

G.12x12x12

H.1x1x1x1x1x1x1x1x1x1x1x1

I.8x8x8x8

J.6x6x6x6x6

K.12x12x12

L.18x18x18

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The function f(x) is a cubic function and the zeros of f(x) are -6, -3 and 1. The
jarptica [38.1K]

Answer:

P(x)=-5x^3-40x^2-45x+90

Step-by-step explanation:

<u>Equation of a Polynomial</u>

Given the roots x1, x2, and x3 of a cubic polynomial, the equation can be written as:

P(x)=a(x-x1)(x-x2)(x-x3)

Where a is the leading coefficient.

We know the three roots of the polynomial -6, -3, and 1, thus:

P(x)=a(x+6)(x+3)(x-1)

Since the y-intercept of the polynomial is y=90 when x=0:

90=a(0+6)(0+3)(0-1)

90=a(6)(3)(-1)=-18a

Thus

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The polynomial is:

P(x)=-5(x+6)(x+3)(x-1)

We must write it in standard form, so we have to multiply all of the factors as follows:

P(x)=-5(x^2+6x+3x+18)(x-1)

P(x)=-5(x^2+9x+18)(x-1)

P(x)=-5(x^3-x^2+9x^2-9x+18x-18)

P(x)=-5(x^3+8x^2+9x-18)

\boxed{P(x)=-5x^3-40x^2-45x+90}

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Answer:

A

Step-by-step explanation:

isnt it just A right?

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Step-by-step explanation:

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