问题
计算题
计算:
(1)(﹣2.5x3)2(﹣4x3)=_________;
(2)(﹣104)(5×105)(3×102)=_________;
答案
解:(1)原式=(6.25x6)(﹣4x3)=﹣25x9;
(2)原式=(﹣1×5×3)×(104×105×102)=﹣15×1011=﹣1.5×1012;
计算:
(1)(﹣2.5x3)2(﹣4x3)=_________;
(2)(﹣104)(5×105)(3×102)=_________;
解:(1)原式=(6.25x6)(﹣4x3)=﹣25x9;
(2)原式=(﹣1×5×3)×(104×105×102)=﹣15×1011=﹣1.5×1012;