[(x+2y)²-(x-y)(3x-y)-5y²]÷(2x)要过程,谢谢

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[(x+2y)²-(x-y)(3x-y)-5y²]÷(2x)要过程,谢谢

[(x+2y)²-(x-y)(3x-y)-5y²]÷(2x)要过程,谢谢
[(x+2y)²-(x-y)(3x-y)-5y²]÷(2x)要过程,谢谢

[(x+2y)²-(x-y)(3x-y)-5y²]÷(2x)要过程,谢谢
[(x+2y)²-(x-y)(3x-y)-5y²]÷(2x)
=[x²+4xy+4y²-(3x²-xy-3xy+y²)-5y²]÷2x
=[x²+4xy+4y²-3x²+4xy-y²-5y²]÷2x
=(-2x²+8xy-2y²)÷2x
=-(x-y)²/x +2y

-x+4y-y*y/x

-x+4y-y^2