Question

Let f(x) = x^2 + 1 and g(x) = 3x +5
What is (fg)(x)

Answer 1

fg(x) is f(x)g(x)

Answer 2

use that property to get to result

Answer 3

So use foil?

Answer 4

just multiply the functions :)

Answer 5

I got 3x^3 + 3x + 5x^2 + 5

Answer 6

you are right :)

Answer 7

Thank you!