Respostas

2013-11-05T17:28:11-02:00
2x(x-2) = x(x+1)
2x²-4x = x²+x
2x²-4x-x²-x = 0
x²-5x = 0
x(x-5) = 0
x = 0, x = 5
Re: x = 5
1 5 1