September 2021 1 16 Report
Выделите полный квадрат: 20mn+25m²+16n²

1)(5m-3n)²+15mn

2)(m³+2n)²+2m⁶

3)(5m+4n)²-20mn

4)(11m-4n)²+44mn

5)(5m-3n)²-15mn​
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