1. Решить уравнение:
а) 2(3-2x)=9x-4(1+3x)
2. Упростить выражение:
а) (5x-4y)^2;
б) 7ax^5*(-2а^4x^2);
в) (x-4)(x+2)-(x-3)^3;
г) (3y-4x)^2;
д) 7x^4y^7*(-3xy^2);
е) (y-4)(y+2)-(y-2)^2

Знак ^ Степень
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