你可能感兴趣的试题
(x﹣y)4 (y﹣x)4 ﹣(x﹣y)4 (x+y)4
-3x2y·5x2y=2x2y -2x2y3·2x3y=-2x5y4 35x3y2÷5x2y=7xy (-2x-y)(2x+y)=4x2-y2
(y﹣x)(x+y) (2x﹣y)(﹣y+2x) (x﹣3y)(x+3y) (4x﹣5y)(5y+4x)
(-a+4c)(a-4c) (x-2y)(2x+y) (-3a-1)(1-3a) (-0.5x-y)(0.5x+y)
8x+4=12x 4y﹣4=y 4y﹣3y=y 3x﹣x=3
8x+4=12x 4y﹣4=y 4y﹣3y=y 3x﹣x=3
3x2y•5xy2=-2x2y -2x2y3•2xy=-2x3y4 28x4y2÷7x3y=4xy (-3a-2)(3a+2)=9a2-4
(﹣4x+3y)(4x+3y) (4x﹣3y)(3y﹣4x) (﹣4x+3y)(﹣4x﹣3y) (4x+3y)(4x﹣3y)
(4x-3y)(-3y-4x) (2x2-y2)(2x2+y2) (a+b-c)(-c-b+a) (-x+y)(x-y)
x4+x4=2x8 x3•x2=x6 (x2y)3=x6y3 (x﹣y)(y﹣x)=x2﹣y2
(y﹣x)(x+y) (2x﹣y)(﹣y﹣2x) (x﹣3y)(﹣3y+x) (4x﹣5y)(5y+4x)