问题
计算题
(1)(x-y)2-(y+2x)(y-2x)
(2)(36x6-24x3+12x2)÷12x
(3)(a-b)m+3(b-a)2(a-b)m
(4)(1-5x)2-(5x+1)2
答案
(1)5x2-2xy,
(2)3x4-2x+1,
(3)(a-b)2m+5,
(4)-20x
(1)(x-y)2-(y+2x)(y-2x)
(2)(36x6-24x3+12x2)÷12x
(3)(a-b)m+3(b-a)2(a-b)m
(4)(1-5x)2-(5x+1)2
(1)5x2-2xy,
(2)3x4-2x+1,
(3)(a-b)2m+5,
(4)-20x