Question

Let f(x)=7x3−2x−12and g(x)=−3x3−8x2+10x

What is the function rule for (f+g)(x) ?

A. (f+g)(x)=4x6−8x2+12x−12

B. (f+g)(x)=4x6−8x2+8x−12

C. (f+g)(x)=4x3−8x2+8x−12

D. (f+g)(x)=4x3−12x2+8x−12

Answer 1

You just combine add like terms in the equations so your answer would be C.