Respostas

2014-05-30T11:04:36-03:00
2 elevado a 5=32 + 2² =36
Isso :)
2014-05-30T11:19:47-03:00
X²+5x=36
x²+5x-36=0
Δ=25+144=169, √169=13
x=(-5t13)/2
x=-18/2= -9
x=8/2=4

Resposta: 4