(5x^4-10x^3+25x^2y^2)除以(-5x^2)
-10x^3y除以-5x^2+25x^2y^2除以-5x^2=
(5x^4-10x^3y+25x^2y^2)除以(-5x^2)=_____________________
[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]除以4x
[(5x+2y)(3x+2y)+(x+2y)(x-2y)]除以4x
化简[(3x+4y)^2-(2x+y)(2x-y)+(-x+y)(5x-y)]除以-2y,其中x=-1,y=1
y^2-x^2\5x^2-4yx除以x+y\5x-4y
[(x+2y)的平方-(x+y)(x-y)-5y的平方]除以(2x)
化简:x平方-x-2/x平方-x-6除以x平方+4x-5/x平方+2x-10
【(x-y)^2+(x+y)(x-y)】除以 2x
分式的加减:[(x/y-y/x)除以(x+y)+x(1/y-1/x)]除以1+x/y,其中x=5,y=2
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
为什么3x除以4等于2y除以5就相当于x除以y等于8除以15?