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Автор - МиланаКоролевская

преобразуйте в произведение:
а)X^-25y^
б)16+8k+k^
в)5a^-15a^

Ответ

Автор - sashechka29
а) x²-25y²= (x-5y)(x+5y)
б)16+8k+k²=k²+8k+16=(k+4)²
в)5a²-15a²=5a²(1-3)=-10a²

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