Question

For f(x)=x^2+3 and g(x)=x^2-4 what is (gof)(x)

Answer 1

x^4-8x^2+19

Explanation:

(X^2-4)^2+3

(X^2-4)(X^2-4)+3

(x^4-8x^2+16)+3

x^4-8x^2+19