Question

If f(x)=x²-1, and
g(x)=x+2, then

Answer 1

f(g(x) = 1x² + 4x + 3

Step-by-step explanation:

Question: f(g(x))

Given following:

• f(x) = x² - 1

• g(x) = x + 2

While solving such function questions, solve from right to left.

⇒ f(x + 2)

⇒ (x + 2)² - 1

⇒ x² + 4x + 4 - 1

⇒ x² + 4x + 3