【给好评】解方程组 {x^2-2xy-3y^2=0 {xy+y^2=4【给好评】解方程组{x^2-2xy-3y^2=0{xy+y^2=4
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【给好评】解方程组 {x^2-2xy-3y^2=0 {xy+y^2=4【给好评】解方程组{x^2-2xy-3y^2=0{xy+y^2=4
【给好评】解方程组 {x^2-2xy-3y^2=0 {xy+y^2=4
【给好评】解方程组
{x^2-2xy-3y^2=0
{xy+y^2=4
【给好评】解方程组 {x^2-2xy-3y^2=0 {xy+y^2=4【给好评】解方程组{x^2-2xy-3y^2=0{xy+y^2=4
【给好评】解方程组 {x^2-2xy-3y^2=0 {xy+y^2=4【给好评】解方程组{x^2-2xy-3y^2=0{xy+y^2=4
【给好评】数学解二元二次方程组 {y-x=1 {2x^2-xy-2=0【给好评】数学解二元二次方程组{y-x=1{2x^2-xy-2=0
解方程好评好评好评x平方-xy-2y平方=0和2x+y=3
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【给好评】解方程组 {x+y=7 {x^2+y^2+x+y-32=0【给好评】解方程组{x+y=7{x^2+y^2+x+y-32=0
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2、3给好评
(x-2)(y+3)=xy (x-5)(y+2)=xy 解方程组(x-2)(y+3)=xy (x-5)(y+2)=xy 解方程组用加减消元法来解 不行的话用代入消元法
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