作业帮整式的除法.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
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![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](/uploads/image/z/3673605-21-5.jpg?t=%E6%95%B4%E5%BC%8F%E7%9A%84%E9%99%A4%E6%B3%95.%E6%88%91%E9%A9%AC%E4%B8%8A%E5%B0%B1%E8%A6%81%E5%8E%BB%E8%A1%A5%E8%AF%BE%E4%BA%86.1.%5B%EF%BC%88x-1%EF%BC%89%EF%BC%88x%2B2%EF%BC%89%2B2%5D%C3%B7x2.%EF%BC%886an%2B2%E7%9A%84%E6%AC%A1%E6%96%B9-9an%2B1%E6%AC%A1%E6%96%B9%2B3an-1%E6%AC%A1%E6%96%B9%EF%BC%89%C3%B73an-1%E6%AC%A1%E6%96%B93.%EF%BC%88x%26%23178%3B-2xy%EF%BC%89%C2%B79x%26%23178%3B-%EF%BC%889xy%E4%B8%89%E6%AC%A1%E6%96%B9-12x%E5%9B%9B%E6%AC%A1%E6%96%B9y%26%23178%3B%EF%BC%89%C3%B73xy4.%5B%EF%BC%88x%2By%EF%BC%89%EF%BC%88x-y%EF%BC%89-%EF%BC%88x-y%EF%BC%89%26%23178%3B%2B2y%EF%BC%88x-y)
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
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
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
1.原式=（x^2+2x-x-2+2)÷x=x+1
2.原式=（6^an+2-9an+1)÷3^an-1
=（2^an+2)x3^(an+2-an+1)-3^2(an+1)÷3^an-1
=3^3（2^an+3)-3^(2an+2-an+1)
=3^3（2^an+2)-3^(an+3)+1
3.原式=9x^4-18x^3y-(3y^2-4x^3y)
=9x^4-14x^3y-3y^2
4.原式=[x^2-y^2-(x^2-2xy+y^2)+2xy-2y^2]÷4y
=(x^2-y^2-x^2+2xy-y^2+2xy-2y^2)÷4y
=(4xy-4y^2)÷4y
=x-y
1.x+1
2.2a3的次方-3a2的次方+1
3.9x的四次方-14x的立方-3y的平方
4.x-y
1、x+1
1.(x^2+x-2+2)/x=(x^2+x)/x
2.{6a^(n+2)-9a^(n+1)+3a^(n-1)}/3a^(n-1)
3.9x^4-18x^3y-3y^2+4x^3y=9x^4-3y^2-14x^3y
4.(x^2-y^2-x^2+2xy-y^2+2xy-2y^2)/4y=(4xy-4y^2)/4y=x-y