Question

What substitution should be used to rewrite 16(x + 1)2 - 22(x + 1) - 3 = 0 as a quadratic equation?

Answer 1

see explanation

Explanation:

Given

16(x + 1)² - 22(x + 1) - 3 = 0

Using the substitution u = x + 1, then

16u² - 22u - 3 = 0 ← quadratic equation in standard form