Ответ:
5. а) =с⁴-9а²
б) =9х²+6х⁴+9х²
в) = ((3-k)(3+k))²=(9-k)²=81-18k²+k⁴
Объяснение:
6. a) =a²(36a²-25b²)=a²(6a-5b)(6a+5b)
б) =(x-7-9)(x-7+9)=(x-16)(x+2)
в) =a³-2³b³=a³-(2b)³=(a-2b)(a²+2ab+4b²)
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Ответ:
5. а) =с⁴-9а²
б) =9х²+6х⁴+9х²
в) = ((3-k)(3+k))²=(9-k)²=81-18k²+k⁴
Объяснение:
6. a) =a²(36a²-25b²)=a²(6a-5b)(6a+5b)
б) =(x-7-9)(x-7+9)=(x-16)(x+2)
в) =a³-2³b³=a³-(2b)³=(a-2b)(a²+2ab+4b²)