问题
解答题
计算[(x+y)2-y(2x+y)-8x]÷2x
答案
[(x+y)2-y(2x+y)-8x]÷2x,
=(x2+2xy+y2-2xy-y2-8x)÷2x,
=(x2-8x)÷2x,
=
x-4.1 2
计算[(x+y)2-y(2x+y)-8x]÷2x
[(x+y)2-y(2x+y)-8x]÷2x,
=(x2+2xy+y2-2xy-y2-8x)÷2x,
=(x2-8x)÷2x,
=
x-4.1 2