(4x²-y²)÷4x²-4xy+y²/2x-y 过程
分式除法(2y-x)÷x²-4xy+4y²/x+3xy要过程
已知x/y=2,求2x(x+y)-y(x+y)/4x²-4xy+y²
3x²y+xy²-[2xy²-4x²y+(x²y-2xy²)
(-x-2y)(x²-2xy+4y²)
1.化简:x²-4y²/x²+y²+2xy÷2y+x/x²+xy.
x²+y²+2xy分之x²-4y² ÷x²+xy分之2y+x
(x²+2xy+y²分之x²-4y²)÷(x²+xy分之x+2y)
已知x²+y²-8x+6y+25=0,求(x-y+4xy/x-y)(x+y-4xy/x+y)
化简(x²y-4y²)/(x²+4xy+4y²)*[(4xy)/(x-2y)+x
(x-y)/(2x+2y)与(xy)/(x+y)²通分要过程
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
1.化简求值:(x+y)(x-y)-(x-y)²-6x²y÷2y+(2xy)²÷(-4xy