早教吧作业答案频道 -->数学-->
[(3x+y)虏-3(3x-y)(x+y)-(x-3y)(x+3y)]÷(2xy)是[(3x+y)²-3(3x-y)(x+y)-(x-3y)(x+3y)]÷(2xy)
题目详情
[(3x+y)虏-3(3x-y)(x+y)-(x-3y)(x+3y)]÷(2xy)
是[(3x+y)²-3(3x-y)(x+y)-(x-3y)(x+3y)]÷(2xy)
是[(3x+y)²-3(3x-y)(x+y)-(x-3y)(x+3y)]÷(2xy)
▼优质解答
答案和解析
原式=(9x²+6xy+y²-9x²-6xy+9y²-x²+9y²)÷2xy
=(19y²-x²)/2xy
=(19y²-x²)/2xy
看了 [(3x+y)虏-3(3x-...的网友还看了以下：
1.x+(-y+3)2.x-(-3-y)3.-(x-y)+34.3-(x+y)2.判断..哪里错误 2020-05-23 …
y=3^x^3的导数我们老师分解成y=3^uu=x^3最后答案y'=3x^2.3x^3.ln^3我 2020-06-07 …
[(3x+y)虏-3(3x-y)(x+y)-(x-3y)(x+3y)]÷(2xy)是[(3x+y) 2020-06-29 …
几个二元一次方程组而已~2x+y=3和x-y=1;2x-3y=4和5x-3y=1;x+2y=9和3 2020-08-03 …
1.下列是方程5x-3y=9的解是()A.x=2y=2B.x=-3y=-1C.x=0y=-3D.x 2020-08-03 …
数学（把下列各式分解因式）把下列各式分解因式：1）2a(a+b)+3(a+b)2)x(y-x)+y( 2020-10-31 …
1、(a+1)(a-1)(1+a²)2、(-7xy-y)(-7xy+y)3、-(x-1)(x+1)- 2020-11-01 …
因式分解,会几道答几道,1)x^3-x^2-x-y^3+y^2+y2)x^3-y^3-x^2+2xy 2020-11-01 …
当x=1时,y=1；当3x=2时,y=3；3x=3时,y=7.求x与y的函数关系?正确如下：当x=1 2020-12-05 …
高一数学分离常数法求值域,y=x^2+m'x+n'/x^2+mx+n型的函数怎么分离?例题：求y=3 2021-01-31 …