Ответ: №3.94
1) (9 - х^2)(9 + х^2)=81 - х^4
2)(х^2 + 1)(х^2 - 1)= х^4 - 1
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Ответ: №3.94
1) (9 - х^2)(9 + х^2)=81 - х^4
2)(х^2 + 1)(х^2 - 1)= х^4 - 1