Представьте в виде многочлена выражение: а) (xвторая степень + xу – у?) (x+y); д) (а? – 2а + 3) (а — 4);
б) (n2 - пp + p?) (n - р); е) (5x — 2) (x2 – х – 1);
в) (а + х) (а2 ах – х2); ж) (2 – 2х + x2)(х + 5);
г) (b – с) (b2 — bc — с2); 3) (3y — 4) (у? - y + 1).
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