Question

Given f(x) =-3x^2 - 2r

Find f(8)

Answer 1

Answer: f(8) = -208

Explanation:

To solve, we will substitute 8 into the equation for x.

Given:

f(x) = -3x² - 2x

Substitute 8 for x:

f(8) = -3(8)² - 2(8)

Square:

f(8) = -3(64) - 2(8)

Multiply:

f(8) = -192 - 16

Subtract:

f(8) = -208