问题
解答题
计算: (1)30-2-3+(-3)2-(
(2)(-2a2b3)4+(-a)8•(2b4)3 (3)(-3ab)(2a2b+ab-1) (4)(p-q)6÷[(p-q)2(q-p)3] (5)xm•(xn)3÷(xm-1•2xn-1) (6)(-
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答案
(1)原式=1-
+9-4=51 8
;7 8
(2)原式=16a8b12+8a8b12=24a8b12;
(3)原式=-6a3b2-3a2b2+3ab;
(4)原式=(p-q)6÷[-(p-q)5]=-(p-q)=q-p;
(5)原式=xm+3n÷2xm+n-2=
x2n+2;1 2
(6)原式=(-
×3)2010×3=3.1 3