1)Упростите выражение: а)3а^2b*(-5a^3)=

б)(2x^2y)^3=

2)Решите уравнение:

а)3х-5(2х+1)=3(3-2х)=

3)Разложите на множители:

а)2xy-6y^2=

б)a^3-4a=
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