你可能感兴趣的试题
(x+y)(y+x) (x+y)(y-x) (x+y)(-y-x) (-x+y)(y-x)
(﹣x﹣y)(x﹣y) (﹣x+y)(﹣x﹣y) (x+y)(﹣x+y) (x﹣y)(﹣x+y)
(x+2y)(2x-y) (x+y)(x-2y) (x+2y)(2y-x) (x-2y)(2y-x)
(a+b)(﹣a﹣b) (a+b)(﹣a+b) (﹣a+b)(a﹣b) (﹣a+b)(b﹣a)
(﹣x﹣y)(x﹣y) (﹣x+y)(﹣x﹣y) (x+y)(﹣x+y) (x﹣y)(﹣x+y)
(﹣x﹣y)(x﹣y) (﹣x+y)(﹣x﹣y) (x+y)(﹣x+y) (x﹣y)(﹣x+y)
(x﹣y)(﹣x+y) (﹣x﹣y)(﹣x+y) (x﹣y)(﹣x﹣y) (x+y)(﹣x+y)
(3a+b)(a-b) (-3a-b)(-3a+b) (3a+b)(-3a-b) (-3a+b)(3a-b)
(-a-1)(-a+1) (a-1)(-a-1) (a-1)(1+a) (a+1)(-a-1)
(4x-3y)(-3y-4x) (2x2-y2)(2x2+y2) (a+b-c)(-c-b+a) (-x+y)(x-y)
(﹣a﹣b)(a+b) (﹣a﹣b)(a﹣b) (﹣a﹣b+c)(﹣a﹣b+c) (﹣a+b)(a﹣b)
-x4-y4 4m2+n2 -x4 (a+b)2-81
(x+1)(x﹣1) (a+b)(a﹣2b) (﹣a+b)(a﹣b) (﹣m﹣n)(m+n)
(﹣5+a)(﹣5﹣a) (a﹣b)(a+c) (a+b)(﹣a﹣b) (x+1)(2﹣x)
(﹣x﹣y)(x﹣y) (﹣x+y)(﹣x﹣y) (x+y)(﹣x+y) (x﹣y)(﹣x+y)