Question

F(x)=4x^2 and g(x)= x+1, find (f o g)(x)

Answer 1

(f o g)(x) = (x + 1)^2 or 4x^2 + 8x + 1

Explanation:

(f o g)(x) is the result of using g(x) = x + 1 as the input to f(x) = 4x^2:

(f o g)(x) = 4(x + 1)^2. This could be expanded to 4(x^2 + 2x + 1), or

4x^2 + 8x + 1.