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Toshkakuma
@Toshkakuma
July 2022
1
8
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Помогите!
Нужно упростить (0,8x+0,5y)²
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Sonia552003
(0.8x+0.5y)^2=0.8^2*x^2+0.8xy+0.5^2*y^2=(8/10)^2*x^2+0.8xy+(5/10)^2*y^2=(4/5)^2*x^2+0.8xy+(1/2)^2*y^2=16/25*x^2+0.8xy+1/4y^2
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