Автор - iwanoffnikit12

Решите уравнение:
1) (x-1)(x+2)-x(x+3)=3x-1

Выполните действия:
1) (-0,3m^2x^3y^4)(-1,5mx^2y)
2) (2/7a-3b^2)(2/7a+3b^2)
3) (15a^3x^2+5a^4x) : (-5a^3x)

Ответы и объяснения

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