Question

If f(x) = x2^2 - 1, find f(3).

Answer 1

@satellite73
@Mertsj
@phi

Answer 2

it is 2x or x2

Answer 3

or x^2^2

Answer 4

is 2x

Answer 5

f(x) = 2x^2 - 1
f(3) = 2*(3^2) - 1.
What is 3 ^2?
What is 2*3^2? What is 2*3^2 -1?

Answer 6

A. 5

B. 2

C. 8

D. -2

Answer 7

i got 17.... ?

Answer 8

That's right...
unless by x2^2 you meant (2x)^2 instead of 2x^2. But I think you got it right.
Good job!

Answer 9

but these are the answers... A. 5

B. 2

C. 8

D. -2

Answer 10

:(

Answer 11

That's weird.
Draw a picture of the equation exactly how you remember it.

Answer 12

oops sorry heres the equation ,

Answer 13

If f(x) = x^2 - 1, find f(3).

Answer 14

either way you explained how to do it, thanks :) i got 8