Question

What is the rule for (fg)(x) for functions f(x)=x^2-9 and g(x)=2x

2x²-7x


2x^3+


2x^3 +2x-9


2x^3-18x

what is the rule for (fg)(x) for functions f(x)=2x^2-8 and g(x)=x+2
3x-6


3x²-10


2x²-x-10


x-10

Answer 1

Answer:did you get all 5 of these?

Explanation:

Answer 2

The last choice 2x^3 - 18x.

Explanation:

(fg)(x) - f(x) * g(x)

= (x^2 - 9)(2x)

= 2x^3 - 18x.