x方-y方/6x+9除以x+y/2x-6
x方-y方/6x+9除以x+y/2x-6
X方+4X+Y方-6Y+13=0 求 (X-2Y)除以(X方+Y方)的值如题
已知:3x方+xy-2y方=0,求(x+y/x-y + 4xy/y方-x方)除以 x方+2xy-3y方 / x方-9y方
x方-2x+y方+6y+10=0 求x,y
化简求值,若X方-2XY+Y方+1XY-11=0,求X方+6XY+9Y方分之X方-25Y方*5X-25Y分之X+3Y的值
计算4x方-4xy+y方-4x+2y-15 4x方y方-5x方y方-9y方
(3X方|4Y方)的平方乘2Y|3X+X方|2Y方除以2Y方|X等于多少?
2x方-3x-6xy+9y
【(x+2y)方-(x+y)(3x-y)-5y方】除以2x
若X方+Y方+6X-2y+10=0,则分式X三次方-4X方Y+4XY方
①x方-2x+2y-y方 ②x方+3x-40 ③2x方-7x+6 ④2x方-7xy+6y ⑤a方-b方+4a+2b+3
因式分解-8x四次方y+6x三次方y²-2x三次方y