Respuestas

2014-02-23T11:16:19+01:00
(x+3)(x+2)(x+5)=x^3+10x^2+31x+30
(x+2)(x+5)(x+5)=x^3+12x^2+45x+50
x^3+10x^2+31x+30+x^3+12x^2+45x+50=2x^3+22x^2+76x+80