﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/05 05:37:27
![﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10](/uploads/image/z/1024340-68-0.jpg?t=%EF%B9%99-1.2%C3%9710%26%23178%3B%EF%B9%9A%26%23178%3B%C3%97%5B0.6%C3%97%EF%B9%9910%26%23178%3B%EF%B9%9A%26%23178%3B%5D%2B%EF%B9%99-2%C3%9710%26%23178%3B%EF%B9%9A%26%23179%3B%C3%9710)
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﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10
﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10
﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10
=120^2 * 0.6*10000 + (-200)^3 *10
=14400 *6000+(-8000000)*10
=86400000-80000000
=6400000 也就是6.4的6次方 ,考的是运算顺序,先括号在平方