Контрольные задания > Разложите на множители 25x^2-10y+y^2-9.

Вопрос:

Разложите на множители 25x^2-10y+y^2-9.

Ответ:

\[25x^{2} - 10y + y^{2} - 9 = (5x - y)^{2} - 3^{2} =\]

\[= (5x - y - 3)(5x - y + 3)\]

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