√12x²y+24x²y³ (x>=0 y>=0) √a5次方+2a³b
(x+y)²-2x-y=0,则(x-y)999次方=?
已知实数abxy满足|x-3|=y-1-b² ,|√x -√3|+y=1-a² 求2的x+y次方+2
2的X次方-3的负x次方>=2的负Y次方-3的Y次方.则:A X-Y>=0 B X-Y=0 D X+Y
2x²+1/2y²-2x-3y+5=0,求(2x√9x-y²√x/y³)-(√1
已知4x²+y²-4x-6y+10=0求(2/3x(√9x)+(y²√x/y³)
已知4x²+y²-4x-6y+10=0,求(2/3√9x+y²√x/y³)-(x
若x²+2x+y²-8y+17=0 求x 的y次方的值~
已知实数,a,b,x,y满足y+|√x-√3|=1-a²,|x-3|=y-1-b²,则2的x+y次方
2x+y=0,求4x²+2xy(x+y)+y³
已知:X²+2Y²+4X-12Y+22=0,其中X、Y都为有理数,求Y的X次方的值
解方程组:x的4次方+y的4次方-2x²y²+x²+y²+2xy=0 x
已知(√x-y-4)+|x-2y-5|=0,则√x+y²=____.³√x²-y²