计算: [(2x-y)(2x+y)+y(y+6x)]/2x 要详细过程
1个回答
[(2x-y)(2x+y)+y(y+6x)]/2x
= [(2x)^2-y^2+y^2+6xy]/2x
=(4x^2+6xy)/2x
=2x+3y
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