Answer:
x = - 5
x = - 12
Step-by-step 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 - 5 = 0 - 5
x + 12 - 12 = 0 - 12
