Math problem, function?

Question

Given the function f(x)=7x^2 - 6x + 6 . Calculate the following values:

f (-2) =?

Can someone please teach me how to do this? step by step pls, and explain

Answer 1

it is asking you to replace each instance of x in f(x) with -2.

so, you have f(-2) = 7(-2)^2 - 6(-2) + 6

= 28 + 12 + 6

= 46.

Answer 2

all u do is plug in -2 for x in the f(x) eq.

7(-2)^2 - 6(-2) +6

7(4) + 12 + 6

28 + 12 + 6 = 46

Answer 3

ok

7 * 2 ^ 2 - 6 * 2 + 6

28-12+6

22