Объяснение:
(3a-5b)(3a+5b)= 9a²-25b²
(3a²-2b)(9a⁴+6a²b+4b²)= 27a^6-8b³
3(a-b)(a+b)=3a²-3b²
(3a²+2b)(9a⁴-6a²b+4b²)= 27a^6+8b³
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Объяснение:
(3a-5b)(3a+5b)= 9a²-25b²
(3a²-2b)(9a⁴+6a²b+4b²)= 27a^6-8b³
3(a-b)(a+b)=3a²-3b²
(3a²+2b)(9a⁴-6a²b+4b²)= 27a^6+8b³