Question

Let f(x)=3x^2-2x+1 and g(x)=2x-3. find (fg) (x)

Answer 1

(fg)(x)= 6x^3-13x^2+8x-3

Explanation:

(fg)(x)= f(x).g(x)

(fg)(x)=(3x^2-2x+1).(2x-3)

(fg)(x)= (6x^3-9x^2-4x^2+6x+2x-3)

(fg)(x)= 6x^3-13x^2+8x-3