Question

The function f is defined by f (x) = 2x²+3.
Find f (2x).

Answer 1

`f(2x) = 8x^(2) +3`

Explanation:

f (x) = 2x²+3

f(2x) =
`2(2x)^(2)` + 3

f(2x) =
`2(4x^(2) )` + 3

f(2x) =
`8x^(2)` + 3