Suppose a(x)=3x-7 and b(x)=2-x^3. Find a(b(3))-b(a(3)). Thank you.

Answer 1

Good Lord. On a Monday?

a(b(3))= a((2-27)=a(-25)=-75-7=-82

b(a(3))=b(9-7)=b(2)=2-8=-6

now a(difference)=a(-6+82)=3(76)-7

double and treble check this math. Monday is Monday.