Question

.
f(x) = 5x2 + 6, g(x) = 7x
Find (f o g)(x).

Answer 1

Answer:

245x² + 6

Step-by-step explanation:

Substitute x = g(x) into f(x)

f(7x) = 5(7x)² + 6 = 5(49x²) + 6 = 245x² + 6