[(x-2y)²+(x+y)(3x-y)-3y²]÷2x
问题描述:
[(x-2y)²+(x+y)(3x-y)-3y²]÷2x
化简。
答
[(x-2y)²+(x+y)(3x-y)-3y²]÷2x
=(4x²-2xy)/2x
=2x-y