Respostas

2014-06-03T21:40:39-03:00
3√4y + 10 = 3
3 + 2√y + 10 = 3
2√y = 3 - 13
2√y = -10
√y = - 10 /2
√y = - 5
(√y)² = ( - 5)²
y = 25