Question

If f(x) = 2x2 - 10, find f(5)

Answer 1

-30?

Answer 2

is that 2x^2 or is it really 2x2?

Answer 3

Really 2x2 lol... I have such a hard time doing this stuff

Answer 4

10 it's 10

Answer 5

if
\[2x ^{2}-10 \]
=
40

Answer 6

2*5*2 - 10
20-10
10

Answer 7

Oh yeah.. Duh lol I can't believe I couldn't figure that one out :P Thanks