Respostas

2014-07-21T09:43:51-03:00
X - 1√(2x-2) = 4

x + √(2x-2) = 5

√(2x-2) = 5 - x

2x - 2 = (5 - x)²

2x - 2 = 25 - 10x + x²

x² - 10x + 25 - 2x + 2 = 0

x² -12x + 27 = 0

Bhaskára....

x = 9
x = 3