(x-1)^2y^2=16https://yuyumissing.lofter.com/post/1
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已知x^2-8x+y^2-y+16又1/4=0,求[(x+y)(x-y)-(x+y)^2-2y(x-3y)]÷4y的值已知x^2-8x+y^2-y+16又1/4=0,求[(x+y)(x-y)-(x+y)^2-2y(x-3y)]÷4y的值已知
若x-y=1化简(x+y)(x^2+y^2)(x^4+y^4)(x^8+y^8)(x^16+y^16)若x-y=1化简(x+y)(x^2+y^2)(x^4+y^4)(x^8+y^8)(x^16+y^16)若x-y=1化简(x+y)(x^2+
x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2以上错误,修改如下:y/x=2
4x+2y=16x-y=1,4x+2y=16x-y=1,4x+2y=16x-y=1,二式乘以2,相加的,6x=118,得x=3,y=2x=3y=2,xy=6x=1+y4(1+y)+2y=164+4y+2y=166y=12y=2x=3有方程组
2y(x+二分之一y)-[(x+y)(x-y)+2y(y+x)],其中|x-1|=22y(x+二分之一y)-[(x+y)(x-y)+2y(y+x)],其中|x-1|=22y(x+二分之一y)-[(x+y)(x-y)+2y(y+x)],其中|
(x-y)(x+y)-(x+y)^2+2y(y-x),其中x=1,y=3.(x-y)(x+y)-(x+y)^2+2y(y-x),其中x=1,y=3.(x-y)(x+y)-(x+y)^2+2y(y-x),其中x=1,y=3.(x-y)(x+y
(x-4y=-12x+y=16)(x-y=12x+y=5)(x-4y=-12x+y=16)(x-y=12x+y=5)(x-4y=-12x+y=16)(x-y=12x+y=5)第一个:移项x=4y-1代入第二个方程8y-2+y=16y=2,x
2(x-y)/3-(x+y)/4=-1(1)6(x+y)-4(2x-y)=16(2)2(x-y)/3-(x+y)/4=-1(1)6(x+y)-4(2x-y)=16(2)2(x-y)/3-(x+y)/4=-1(1)6(x+y)-4(2x-y)
(2x-2y)/3-(x-y)=-1和6(x+y)-4(2x-y)=16(2x-2y)/3-(x-y)=-1和6(x+y)-4(2x-y)=16(2x-2y)/3-(x-y)=-1和6(x+y)-4(2x-y)=16(2x-2y)/3-(x
解方程组2(x-y)/3-x+y/4=-16(x-y)-4(2x-y)=16解方程组2(x-y)/3-x+y/4=-16(x-y)-4(2x-y)=16解方程组2(x-y)/3-x+y/4=-16(x-y)-4(2x-y)=162(x-y)
解方程组:2(x-y)/3-x+y/4=-1,6(x+y)-4(2x-y)=16解方程组:2(x-y)/3-x+y/4=-1,6(x+y)-4(2x-y)=16解方程组:2(x-y)/3-x+y/4=-1,6(x+y)-4(2x-y)=16
3分之2(X-Y)-4分之X+Y=-1,3(X+Y)-2(X-Y)=163分之2(X-Y)-4分之X+Y=-1,3(X+Y)-2(X-Y)=163分之2(X-Y)-4分之X+Y=-1,3(X+Y)-2(X-Y)=16第一个两边乘128(x-
2(X-Y)/3=(X+Y)/4-16(X+Y)=4(2X-Y)+16解方程2(X-Y)/3=(X+Y)/4-16(X+Y)=4(2X-Y)+16解方程2(X-Y)/3=(X+Y)/4-16(X+Y)=4(2X-Y)+16解方程2(X-Y)
6(x+y)=4(2x-y)+16,2(x-y)/3=x+y/4-16(x+y)=4(2x-y)+16,2(x-y)/3=x+y/4-16(x+y)=4(2x-y)+16,2(x-y)/3=x+y/4-12(x-y)/3-(x+y)/4=-
2(x-y)/3—x+y/4=16(x+y)—4(2x-y)=162(x-y)/3—x+y/4=16(x+y)—4(2x-y)=162(x-y)/3—x+y/4=16(x+y)—4(2x-y)=162(x-y)/3—x+y/4=16(x+y
3分之2(x-y)-4分之x+y=-18(x+y)-4(2x-y)=163分之2(x-y)-4分之x+y=-18(x+y)-4(2x-y)=163分之2(x-y)-4分之x+y=-18(x+y)-4(2x-y)=16{3分之2(x-y)-4
x^+2x+1+y^2-8y+16=0求y/xx^+2x+1+y^2-8y+16=0求y/xx^+2x+1+y^2-8y+16=0求y/x∵x^2+2x+1+y^2-8y+16=(x+1)^2+(y-4)^2=0∴x=-1y=4(两非负数和
X+X+X+Y+Y=20X+Y+Y=14.6x=?Y=?速度啊1分钟时间X+X+X+Y+Y=20X+Y+Y=14.6x=?Y=?速度啊1分钟时间20错了是25啊X+X+X+Y+Y=20X+Y+Y=14.6x=?Y=?速度啊1分钟时间X+X+
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]