x-y/2a=(y-x)²/( ) 在括号内填上适当的整式,使等式成立.

问题描述:

x-y/2a=(y-x)²/( ) 在括号内填上适当的整式,使等式成立.

x-y/2a=(y-x)²/(4a² )

x-y/2a=(y-x)²/[2a(x-y )]
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x-y/2a=(y-x)²/2a(x-y )