若x-y=5xy=6则x^2y-xy^2=,x^2y-xy^2=,x^2+y^2= 用分解因式

来源：学生作业帮助网 编辑：作业帮 时间：2024/08/29 03:11:07
若x-y=5xy=6则x^2y-xy^2=,x^2y-xy^2=,x^2+y^2= 用分解因式
xN@_Ecb)&vx}CtnLjA H(0̴+^^ ;]t=O+d3QCJ(%J$%(%P 31G -Pf`hVlF)4#$\C;W7O2W!Q P2P %ԃ>Y|Q2.+esprҸ9 y!]x NL%sж/fE*g،\•~N (P^ot;N  (\VM] .OI 7$:ݰ319<]!GFe_i؃rƤ˹ +l i;4ߪ8V!eXFI\S-}vvf =?uj,Q

若x-y=5xy=6则x^2y-xy^2=,x^2y-xy^2=,x^2+y^2= 用分解因式
若x-y=5xy=6则x^2y-xy^2=,x^2y-xy^2=,x^2+y^2= 用分解因式

若x-y=5xy=6则x^2y-xy^2=,x^2y-xy^2=,x^2+y^2= 用分解因式
因为x-y=5,xy=6
那么x²y-xy²=xy(x-y)=6*5=30
x²+y²=(x-y)²+2xy=5²+2*6=37
如果不懂,祝学习愉快!

x-y=5(这中间没逗号的吧)xy=6
x-y=6
xy=1.2
x^2y-xy^2
=xy(x-y)
=1.2*6
=7.2
x^2y-xy^2=xy（y-x）
=1.2*(-6)
=-7.2
x^2+y^2 =(x-y)^2+2xy
=6^2+2*1.2
=38.4
有什么不明白可以继续问，...

全部展开

x-y=5(这中间没逗号的吧)xy=6
x-y=6
xy=1.2
x^2y-xy^2
=xy(x-y)
=1.2*6
=7.2
x^2y-xy^2=xy（y-x）
=1.2*(-6)
=-7.2
x^2+y^2 =(x-y)^2+2xy
=6^2+2*1.2
=38.4
有什么不明白可以继续问，随时在线等。
如果我的回答对你有帮助，请及时选为满意答案，谢谢~~

收起

若xy/x+y=2,则3x-5xy+3y/-x+3xy-y=?/是分之 若x-y=4,xy=1,则(2x+y-2xy)-(3x+2y+xy)-(4xy+3y-5x)= 若x-y=5,xy=6,求x^2-xy^2和x^2y+xy^2 若 x+y=5,xy=-50 则x^2y+xy^2 =( ) 若x-y=1,xy=5,则x^2y-xy^2＝ 若x+y=5,xy=6,求x^2y+xy^2的值 若x+y-5xy=0,求(2x-3xy+2y)/(x+2xy+y)的值 若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少? 若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少? 若xy/x+y=2,则3x-xy+3y/-x+3xy-y= 已知xy/x+y=1/2,则代数式3x-5xy+3y/-x+3xy-y= 诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy) 若xy=2（x+y),求 （3x-5xy+3y)÷(-x+3xy-y) 的值 x*x+xy=3,xy+y*y=2,则x*x+2xy+y*y=________? 2x^+xy-y^-4x+5y-6=? 若x/1-y/1=5,则x-2xy-y/2x+5xy-2y=? 若1/x+1/y=2,则(2x-xy+2y)÷(3x+5xy+3y) 已知2/X-1/Y=3,则(X-2Y-XY)/(5XY+6Y-3X)=?