Question

Which quadratic equation is equivalent to (x + 2)^2 + 5(x + 2) - 6 = 0?

Answer 1

`x^2` + 9x + 8 = 0

Explanation:

First, we have to simplify this quadratic equation:

(x+2)^2 + 5(x+2) - 6 = 0

x^2 + 4x + 4 + 5x + 10 - 6 = 0

x^2 + 9x + 8 = 0