题目内容

计算:
(1)(-2a)3=______;
(2)(a2b34=______;
(3)-(4ab32=______;
(4)(xn+1yn-12=______;
(5)-(-3m3n23=______;
(6)(-1.3×1022=______.
(1)(-2a)3=-8a3
(2)(a2b34=a8b12
(3)-(4ab32=-16a2b6
(4)(xn+1yn-12=x2n+2y2n-2
(5)-(-3m3n23=27m9n6
(6)(-1.3×1022=1.69×104
故答案为:(1)-8a3;(2)a8b12;(3)-16a2b6;(4)x2n+2y2n-2;(5)27m9n6;(6)1.69×104
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