Question

Given the function f(x) = −2x2 + 4x − 7, find f(−4).

Answer 1

putting f=-4 inf(x)
-2(-4)×2+4(-4)-7
8×2+(-16)-7
16-16-7
= -7
Ans

Answer 2

Hey mate here is your answer ⤵⤵⤵

Given,

$f(x)=-2x^{2}+4x-7$

Putting -4 in place of x

Now,$f(-4)=-2 (-4)^{2}+4 (-4)-7$

$\implies$$f (-4)=-2 (16)-16-7$

$\implies$$f (-4)=-32-16-7$

$\implies$$f (-4)=-55$

❤hope it helps you ❤

#Be Brainly