Question

Let f(x)=3x-4 and g(x)=2x^3 find f(g(-1) and g(f(-1))

Answer 1

Explanation:

1)F[g(-1)]=

f(2*-1^3)

f(-2)

f(-2)=3*-2-4

f(-2)=-6-4

f(-2)=-10

2)g[f(-1)]=

g(3*-1-4)

g(-3-4)

g(-7)

2*-7^3

2*-343

-686