作业帮﹙-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：2024/08/06 12:46:16
![﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10](/uploads/image/z/1672958-38-8.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
(-1.2×10²)²×[0.6×(10²)²]+(-2×10²)³×10
=[(-1.2)²×(10²)²]×(0.6×10^4)+[(-2)³×(10²)³]×10
=(1.44×10^4)×(0.6×10^4)+(-8×10^6)×10
=(1.44×0.6)×10^(4+4)-8×10^(6+1)
=0.864×10^8-8×10^7
=8.64×10^7-8×10^7
=(8.64-8)×10^7
=0.64×10^7
=6.4×10^6
原式=1.44×10^4×0.6×10^4-8×10^7
=0.864×10^8-8×10^7
=8.64×10^7-8×10^7
=0.64×10^7
=6.4×10^6
﹙-1.2×10²﹚²×[0.6×﹙10²﹚²]+﹙-2×10²﹚³×10
=﹙-120﹚²×[0.6×10000]+﹙-200﹚³×10
=14400×6000+40000×10
=86400000+400000=86800000