Объяснение:
5a-3b+1+(-6a+2b-3)=5a-3b+1-6a+2b-3=-a-b-2
5a-3b+1-(-6a+2b-3)=5a-3b+1+6a-2b+3=11a-5b+4
0.5x^2y+1.5xy^2-2+2.5x^2y-0.5xy^2+2=3x^2+xy^2
0.5x^2y+1.5xy^2-2-2.5x^2y-0.5xy^2+2=-2x^2y+2xy^2-4
Объяснение:
5a-3b+1+(-6a+2b-3)=5a-3b+1-6a+2b-3=-a-b-2
5a-3b+1-(-6a+2b-3)=5a-3b+1+6a-2b+3=11a-5b+4
0.5x^2y+1.5xy^2-2+2.5x^2y-0.5xy^2+2=3x^2+xy^2
0.5x^2y+1.5xy^2-2-2.5x^2y-0.5xy^2+2=-2x^2y+2xy^2-4