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vasiluk2000
@vasiluk2000
July 2022
1
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Упростите выражение:
(2a+2b)^2-2(a+b)^2
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Yena
(2a+2b)
²
-2(a+b)
²=4(a+b)²-2(a+b)²=(a+b)²(4-2)=2(a+b)²
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