整式的除法.我马上就要去补课了.1.[(x-1)(x+2)+2]÷x2.(6an+2的次方-9an+1次方+3an-1次方)÷3an-1次方3.(x²-2xy)·9x²-(9xy三次方-12x四次方y²)÷3xy4.[(x+y)(x-y)-(x-y)²+2y(x-y)]÷4y

问题描述:

整式的除法.我马上就要去补课了.
1.[(x-1)(x+2)+2]÷x
2.(6an+2的次方-9an+1次方+3an-1次方)÷3an-1次方
3.(x²-2xy)·9x²-(9xy三次方-12x四次方y²)÷3xy
4.[(x+y)(x-y)-(x-y)²+2y(x-y)]÷4y