Question

Find (a) f+g, (b) f-g, (c) fg, and (d) f/g and state their domains. f(x)=x^3+2x^2, g(x)=3x^2-1​

Answer 1

Answer:

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)