Упростите:
(4x+1)(4x-3)+(2x-10)(8x+1)
(8x+1)(2x-10)-(4x-3)(4x-1)
Решите уравнения:
16x^2-(4x-2)(4x+3)=-22
9x^2-(3y-1)(3y-2)=-16


Алгебра тема: многочлены
7 класс
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