Question

Given that f(x) x2 + 3x 10 and g(x) = x – 2, find f (x) · g(x) and

express the result in standard form.

Answer 1

x^3 + x^2 + 4x - 20.

Explanation:

I have assumed there is a + between the 3x and the 10.

f(x) * g(x)

= (x^2 + 3x + 10)(x - 2)

= x^3 + 3x^2 + 10x - 2x^2 - 6x - 20

= x^3 + x^2 + 4x - 20.