Question

Given f(x) = 2x² + 4 and g(x) = 3x – 1 ……
What is (fg)(x)?

Show your work.

Answer 1

(fg)(x) = 6x³ - 2x² + 12x - 4

Explanation:

( f g ) ( x ) = f ( x ) * g ( x )

f(x) = 2x² + 4

g(x) = 3x – 1

( f g ) ( x ) = (2x² + 4) (3x – 1)

= 6x³ - 2x² + 12x - 4