посчитайте уровнения:c²+8-9c²-10, -a²+a-6a-4a²-2m+4m²-m³+m+m²3x²y-3x²y²-3x²y²+x²yДаю 20б​

1) c²+8-9c²-10 = -8c²-2

2)-a²+a-6a-4a² = -5a²-5a

3)-2m+4m²-m³+m+m² = -m³+5m²-m

4)3x²y-3x²y²-3x²y²+x²y = -6x²y²+4x²y