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Mathematics, 20.09.2021 05:30 Jasten

Hãy tìm cách giúp bạn An khôi phục lại nhũng hằng đẳng thức bị mực làm nhòe đi một số chỗ: a, x^2+6xy+...=(...+3y)^2
b,... - 10xy+25y^2=(...-...)^2
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Hãy tìm cách giúp bạn An khôi phục lại nhũng hằng đẳng thức bị mực làm nhòe đi một số chỗ: a, x^2+...

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