Question

F(x) = 4x^2 - 3 find f(x + 2)

Answer 1

f(x + 2) = 4x² + 16x + 13

Explanation:

f(x) = 4x² - 3

Then

f(x + 2) = 4(x + 2)² - 3

= 4(x² + 4x + 2²) - 3

= 4(x² + 4x + 4) - 3

= 4x² + 16x + 16 - 3

= 4x² + 16x + 13