5а·2в²-5а·3ав-а²в+6ав² = 16ав²-16а²в
3х·4у²-0.8у·4у²-2ху·3у+у·3у²-1 = 6ху²-0,2у³-1
2m²n²-mn³-m⁴-m²n³+mn³+2m⁴ = 2m²n²-m²n³+m⁴
5а·2в²-5а·3ав-а²в+6ав² = 16ав²-16а²в
3х·4у²-0.8у·4у²-2ху·3у+у·3у²-1 = 6ху²-0,2у³-1
2m²n²-mn³-m⁴-m²n³+mn³+2m⁴ = 2m²n²-m²n³+m⁴