3m (6m + 5n)3m (6m + 5n)8a (5a – 2b)2y (3y – z)5m² (4m – 3)6x³ (3x – 1)2xy² (8x + 9y)11a²b (4a – 3b)5xy³ (8x + y)6a²b³ (4a – 3b)8m³n² (4m² – 5n)3x²y (8x – 1)4ab² (1 + a)8mn (3m – 1)7x³y (1 – xy)5 a²b²?
3m (6m + 5n) 3m (6m + 5n) 8a (5a – 2b) 2y (3y – z) 5m² (4m – 3) 6x³ (3x – 1) 2xy² (8x + 9y) 11a²b (4a – 3b) 5xy³ (8x + y) 6a²b³ (4a – 3b) 8m³n² (4m² – 5n) 3x²y (8x – 1) 4ab² (1 + a) 8mn (3m – 1) 7x³y (1 – xy) 5 a²b² (1 + ab) a(b - c + d) (p + q + r)x.