Question

F(x) = 3x – 5
g(x) = –6x2 + 6x + 2
Find: f(x) · g(x)

Answer 1

f(x) = 3x - 5

g(x) = 6x^2 + 2x

Find: g(f(x))

method: for each x in g, substitute (3x-5)

g[f(x)]=6(3x-5)^2+2(3x-5)

=6(9x^2-30x+25)+6x-10

=54x^2-180x+150+6x-10

Explanation: