Question

Solve using factoring x^2+17x+72=12

Answer 1

x = - 5

x = - 12

Explanation:

x² + 17x + 72 = 12

x² + 17x + 72 - 12 = 0

x² + 17x + 60 = 0

(x + 5)(x + 12) = 0

Two separate equations

x + 5 = 0

x + 12 = 0

x + 5 = 0

x + 5 - 5 = 0 - 5

x = - 5

x + 12 = 0

x + 12 - 12 = 0 - 12

x = - 12