Question

How do you solve X(X+9)=4(X+6) by factoring?

Answer 1

$x {}^{2} + 9x = 4x + 24 \\ x {}^{2} + 5x - 24 = 0 \\ x {}^{2} + 8x - 3x - 24 \\ x(x + 8) - 3(x + 8) \\ (x - 3)(x + 8) \\ x - 3 = 0 \\ x = 3 \\ x + 8 = 0 \\ x = - 8$
3,-8