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Alecsey [184]
3 years ago
5

What are the zeros of f(x) = x2 - x - 20?

Mathematics
1 answer:
sattari [20]3 years ago
5 0

Answer:

(-4,0) and (5,0)

Step-by-step explanation:

Factor.

f(x) = x^2 -x - 20

Factors of -20 that when are added they equal -1

-5 and 4

(x-5) (x+4)

x=5 and x=-4

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Replace x with 2 and solve each equation:

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The answer is:

both expressions equal 5 when substituting 2 for x because the expressions are equivalent.

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3 years ago
Determine the equation of the inverse of y=1/4x^3-2
dedylja [7]

<u>Answer</u>


y⁻¹ = ∛(4x+8)



<u>Explanation</u>

y=(1/4)x³ - 2.

To find the inverse of this equation, you first make x the subject of the formular.

y=(1/4)x³ - 2

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x = ∛(4y+8)


The inverse of y=(1/4)x³ - 2 is;

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7 0
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svetoff [14.1K]

Answer:

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Answer:

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Answer:

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8 0
3 years ago
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