Question

if f(x)=xcube -3xsq+3x-4 find f(2)+f(-2)

Answer 1

Hey

Here is your answer,

f(x) = x^3 - 3x^2 + 3x - 4

f(2) = (2)^3 - 3(2)^2 + 3(2) - 4
= 8 - 3(4) + 6 - 4
= 10-12
= -2

f(-2) = (-2)^3 - 3(-2)^2 + 3(-2) - 4
= (-8) - 12 - 6 - 4
= - 30

f(2) + f(-2) = -2 + -30
= -32

Hope it helps you!

Answer 2

$\textbf {Hey there, here is the solution.}$

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f(x) = x³ - 3x² + 3x - 4 (Given)

.

Find f(2):

f(2) = (2)³ - 3(2)² + 3(2) - 4

f(2) = 8 - 12 + 6 - 4

f(2) = -2

Find f(-2):

f(-2) = (-2)³ - 3(-2)² + 3(-2) - 4

f(-2) = -8 - 12 - 6 - 4

f(-2) = -30

.

Find f(2) + f(-2);

f(2) + f(-2) = -2 - 30 = -32

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Answer: f(2) + f(-2) = -32

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⭐$\textbf {Cheers}$⭐