Question

f(x) = 4x + 6, g(x) = 2x2

Find (fg)(x).

Answer 1

We know x in f(x) is g(x) which is 2x^2 because we are to find (fg)(x)

f(x)=4(2x^2)+6

f(x)=8x^2+6

So (fg)(x) is 8x^2+6

Hope this helped!

Answer 2

(4x+6)(2x^2) = 8x3 + 12x2