Question

If a(x) = 3x + 1 and b(x) = x2, what is the value of a(b(5))?

Answer 1

a(b(5)) = 76

Explanation:

Evaluate b(5) then substitute the value obtained into a(x)

b(5) = 5² = 25, then

a(25) = 3(25) + 1 = 75 + 1 = 76