September 2021 1 14 Report
Можно ли трёхчлен представить в виде квадрата двучлена, решите:




1) a2-2a+4, 2) 4a2+b2-4ab, 3)9m2+100n2-60mn, 4)81p2-72pq-16q2, 5)9x8+4y2-12x2 степениy, 6)a2b4-2ab2x4+x8 ?

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