Question

Given the functions: f(x) = 4x + 6, g(x) = 2x2, find (fg)(x).

A.) 8x^3 + 12x2
B.) 2x^2 + 4x + 6
C.) 8x + 12
D.) 8x^2 + 12x

Answer 1

just mutlpilpy
(4x+6)(2x^2)=8x^3+12x^2
A is answer

Answer 2

To answer the this item, simply multiply the given functions,
                             (f·g)(x) = f(x)  x g(x)
Plugging in the expression,
                           (f·g)(x) = (4x + 6)(2x²)
                                       = 8x³ + 12x²
Thus, the answer to this item is letter A. 8x^3 + 12x^2.