Question

Find f(-8) if f(x)= 4x^2+4x+2

Answer 1

Answer: 226

Explanation:

So the question's asking you to solve for f(-8) which basically means to substitute the x in the equation of f(x) with -8 and solve.

It will then look like this:

f(-8)= 4(-8)^2+4(-8)+2

Then just put it in a calculator and solve.

Answer 2

Answer: 226

Explanation:

Substitute -8 into x. You will get,

4 (-8)² + 4(-8) + 2

4 x 64 - 32 + 2

256 - 30

226