Question

What is the (fg)(x) if
f(x)=(4x - 1) and g(x)=(3x + 5)?
A. 7x + 4
B. 12x2-5
C. 12x2 + 17x-5
D. 12x2 + 23x - 5


Show work

Answer 1

(4x - 1)(3x + 5)

12x^2 + 20x - 3x -5

12x^2 + 17x -5

The answer is C.