Докажите тождество: 3a²+10a+3=3(a+3)(a+1/3); (a+1)(a²+5a+6)=(a²+3a+2)(a+3)

Question

Докажите тождество:
3a²+10a+3=3(a+3)(a+1/3);
(a+1)(a²+5a+6)=(a²+3a+2)(a+3)

Answer 1

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