(1)-22-(-3)3×(-1)4-(-1)5(2)-48×(12-58+13
题型:解答题
问题:
(1)-22-(-3)3×(-1)4-(-1)5 (2)-48×(
(3)-14-
(4)(x2+2xy+y2)-(x2-xy+y2) (5)9a2-[7a2-2a-2(a2-3a)]-3 (6)化简求值,2(a2b+3ab2)-3(a2b-1)-2a2b-2,其中a=-2,b=2. |
(1)-22-(-3)3×(-1)4-(-1)5 (2)-48×(
(3)-14-
(4)(x2+2xy+y2)-(x2-xy+y2) (5)9a2-[7a2-2a-2(a2-3a)]-3 (6)化简求值,2(a2b+3ab2)-3(a2b-1)-2a2b-2,其中a=-2,b=2. |