Answer:
x = -6, -7.
Step-by-step explanation:
x^2 +12x+48=−x+6
x^2 + 12x + x + 48 - 6 = 0
x^2 + 13x + 42 = 0
(x + 6)x + 7) = 0
so x = -6 or x = -7.
