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Автор - artem12091961

разложить на множители: 4а^3-4а= х^4-х^2= са^2-9св^2= 2а^2-2в^2= 5а^3+5в^9= 27с+в^3с=

Ответ

Автор - Sonyako53

27c+b^3c= c(27+b^3) = -c(-27-b^3) =

= -c(-3-b)(-3-b)(-3+b) = c(3+b)(3+b)(3-b)

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