Ответы и объяснения

2013-11-04T08:32:18+04:00
5y^2-3y-1+8y^2+2y-11=13y^2-y-12
5y^2-3y-1-8y^2-2y+11-3y^2-5y+10
2a^2+3a-2+5a^3-3a+2=5a^3+2a^2
2a^2+3a-2-5a^3+3a-2=-5a^3+2a^2+6a-4
x^3-3x+15+x^3+3x-15=2x^3
x^3-3x+15-x^3-3x+15=-6x+30
8x^2+2px-3p^2+2x^2+3px-3p^2-10x^2+5px-6p^2
8x^2+2px-3p^2-2x^2-3px+3p^2-6x^2-px