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ludmilka2003
@ludmilka2003
July 2022
1
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Помогите решить!
упростите выражение:
(-7х+2y)в квадрате - 14х(3х-2н)
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дура37
=4y^2-28xy+49x^2-42x^2+28xy=4y^2+7x^2
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