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nikita2328231
@nikita2328231
July 2022
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Пожалуйста, 7 класс алгебра
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parus77
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7. 1)=m²+2mn+n² 2)=n²-2mn+m² 3)=1-2m+m² 4)=4+4n+n²
5)=4m²+4mn+n² 6)=m²-4mn+4n²
8. 1)=9x²-24xy+16y² 2)=25a²+60ab+ 36b² 3) =1\4 a²+ 2\3ab+4\9 b²
4)= 1\16 x² + 1\5xy+ 4\25y²
10. 1) (х+2в)²= х²+4вх+4в² 2) (3с-а)²=9с²-6ас+а²
3)(а-с)²=а²-2ас+с² 4) (у²+х)²= у⁴+2у²х+х²
11. 1) в²+2вс+с² 2) 4+2х+х² 3) а²+2ав+в² 4) 9а²+6ав²+в⁴
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Answers & Comments
Verified answer
7. 1)=m²+2mn+n² 2)=n²-2mn+m² 3)=1-2m+m² 4)=4+4n+n²5)=4m²+4mn+n² 6)=m²-4mn+4n²
8. 1)=9x²-24xy+16y² 2)=25a²+60ab+ 36b² 3) =1\4 a²+ 2\3ab+4\9 b²
4)= 1\16 x² + 1\5xy+ 4\25y²
10. 1) (х+2в)²= х²+4вх+4в² 2) (3с-а)²=9с²-6ас+а²
3)(а-с)²=а²-2ас+с² 4) (у²+х)²= у⁴+2у²х+х²
11. 1) в²+2вс+с² 2) 4+2х+х² 3) а²+2ав+в² 4) 9а²+6ав²+в⁴