Разложите на множители: -2a^2+8ab-2b^2 Упростите и найдите значение
(b+3)^2(b-3)+3(b+3)(b-3) если b = -2
Представьте в виде произведения.
(у-3)^2-16у^2
x^2-у^2-у-x
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