Question

For the following functions

f(x)= 2x²- 7x + 10 and g(x)= 3x + 5

Find ( f x g ) (-2)

Answer 1

(fg)(x)= (2x²+7x+10)(3x+5)

(fg)(x)=6x^3+31x²-65x+50

(fg)(-2)= 6(-2)^3 + 31*(-2)² -65*-2 +50

(fg)(-2)= -48 + 124 + 130 +50 =-4

(fg)(-2)= -4