x^2 + 14x = 32
To make a perfect square, you need to add 49 to both sides
x^2 + 14x + 49 = 32 + 49
Answer: 49
Solve:
(x + 7)^2 = 81
(x + 7)^2 = 9^2
So
x + 7 = 9
x = 2
and
x + 7 = -9
x = -16
Answer:
x = 2 and x = -16
