Question

Given f(x)=2x-5 and g(x)= x+2, find (f•g)(x)

Answer 1

(f · g)(x) =
`2x^(2) - x - 10`

Step-by-step:

(f·g)(x) = f(x) · g(x)

(2x - 5)(x +2)

`2x^(2) + 4x - 5x - 10`

`2x^(2) - x - 10`