Respostas

2013-07-26T11:31:32-03:00
(3x+x)(3x-1)=7-(x+8)(x-3)\\
4x(3x-1)=7-(x^2-3x+8x-24)\\
12x^2-4x=7-x^2+3x-8x+24\\
12x^2-4x=7-x^2-5x+24\\
(12+1)x^2+(-4+5)x-7-24\\
13x^2+x-31
2 5 2
Muuuuuuuuuuuuuuuuuuuuuuuuuuuuuuito obrigado