Решите задание 27.18(а,б)

Question

Решите задание 27.18(а,б)

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Answer 1

А(3а²-4)(3а²+4) = а( (3а²)²- 4²) = а(9а⁴-16)= 9а⁵-16а

(a-5)(a+5)(a²+25) =(a²-25)(a²+25) =a⁴-625