Question

Factor the given quadratic function x2 + 9x = 36.​

Answer 1

(x + 12)(x - 3)

Explanation:

`{x}^(2) + 9x = 36 \\ {x}^(2) + 9x - 36 = 0 \\ {x}^(2) + 12x - 3x - 36 = 0 \\ x(x + 12) - 3(x + 12) = 0 \\ (x + 12)(x - 3) = 0`