计算:(1)(12)-2-23×0.125+20120+|-1|(2)(-m)2
题型:解答题
问题:
计算: (1)(
(2)(-m)2-(m2)2÷m3 (3)-2a2(12ab+b2)-5ab(a2-ab) (4)(4x+3y)(3y-4x)-(4x+3y)2 (5)(x-3y+1)(x+3y-1) (6)(2x+1)2(2x-1)2. |
计算: (1)(
(2)(-m)2-(m2)2÷m3 (3)-2a2(12ab+b2)-5ab(a2-ab) (4)(4x+3y)(3y-4x)-(4x+3y)2 (5)(x-3y+1)(x+3y-1) (6)(2x+1)2(2x-1)2. |