1) (3b-2)(5-2b)+6b² 2) (7y-4)(2y+3)-13y3) x³-(x²-3x(x+3)4) - вопрос №167992741325262742313333455 от Werbast 27.07.2020 23:28

Question

Алгебра: 1) (3b-2)(5-2b)+6b² 2) (7y-4)(2y+3)-13y3) x³-(x²-3x(x+3)4) 5b³+(a²+5b)(ab-b²)5) (a-b)(a+2)-(a+b)(a-2)6)(x+y)(x-y)-(x-1)(x-2)​

Werbast · Answer

19b - 1014y^2 - 12x ×(x^2 + 2x + 9)a^3 - a^2 b^2 + 5ab^2 b^2 + 5ab^24a - 2 ab-y^2 + 3x - 2...

1) (3b-2)(5-2b)+6b² 2) (7y-4)(2y+3)-13y3) x³-(x²-3x(x+3)4) 5b³+(a²+5b)(ab-b²)5) (a-b)(a+2)-(a+b)(a-2)6)(x+y)(x-y)-(x-1)(x-2)​