(x-y/3)^2-(x+y/3)^2因式分解

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(x-y/3)^2-(x+y/3)^2因式分解
(x-y/3)^2-(x+y/3)^2因式分解

(x-y/3)^2-(x+y/3)^2因式分解
(x-y/3)^2-(x+y/3)^2
=X^2-2XY/3+Y^2/9-X^2-2XY/3-Y^2*9
=-4XY/3

(x-y/3)^2-(x+y/3)^2
=[(x-y/3)+(x+y/3)]*[(x-y/3)-(x+y/3)]
=2x*(-2y/3)
=-4xy/3

(x-y/3)^2-(x+y/3)^2
＝（x-y/3+x+y/3）（x-y/3-x-y/3）
=2x*-2/3y
=-4/3xy

-4xy/3

(1).(x-4)(x+1)+3x (2).(x+y)^2+12(x+y)+36 用多项式因分解 x(x-y)2-(y-x)3 [2/3x-2/x+y(x+y/3x-x-y)]/x-y/x 化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x 计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x [(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y) 计算：x+2y/x-y+2x/y-x-3y/x-y 化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方 2X(2X-3Y)-3Y(X+Y) (-2x y)^2-(3y-x)(-x-3y) （x+2y)^2-(x+y)(3x-y) 计算(x+y)(x+y)^2(-x-y)^3 化简:5(x-y)+2(x+y)-3(x-y) 3x(x-y)+2y(x-y) 计算化简3(x-y)-7(x--y)+2(y-x) 因式分解:3x(x-y)+2y(y-x) (x-y)^3×（x-y)^2×(y-x)