(x^2+y^2)(x^2+y^2+5)-36=0求x^2+y^2的值

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/17 05:21:47
(x^2+y^2)(x^2+y^2+5)-36=0求x^2+y^2的值
x)Ө3Ү3҄1M5ul mln`Y -v6ZtCLpNYOv4<ٱ-ONynTҶDi̒GK!v?l+|{]}`{:JMb⧳ 6ұoz~qAb_6`Ⱦ]}Rr

(x^2+y^2)(x^2+y^2+5)-36=0求x^2+y^2的值
(x^2+y^2)(x^2+y^2+5)-36=0
求x^2+y^2的值

(x^2+y^2)(x^2+y^2+5)-36=0求x^2+y^2的值
将x^2+y^2看做一个整体,设x^2+y^2=t,则t≥0
原方程等价于
t（t+5）-36=0,分解因式有
（t+9）（t-4）=0,∵t≥0,∴解得t=4

等于4

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 化简y(x+y)+(x+y)(x-y)-x^2 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 5x(x-y)+2y(x-y) 化简:5(x-y)+2(x+y)-3(x-y) 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) 因式分解x(x+y)(x-y)-x(x+y)^2 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) （X+2Y)(5X-2Y) (x+2y)(5x-2y) 4x+2y-5x-y (2x-3y)-(5x-y) (2X-3y)-(5x-y) (x-y)^2+5(x-y)-14 (2x-5y)(3x+y) 因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y) [(x-y)^2-(x+2y)(x-2y)]/y (2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解