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基础数学 示例
2.5cd-3.2dc+4.1d2c-3.5c+5.8d-3d2c-cd22.5cd−3.2dc+4.1d2c−3.5c+5.8d−3d2c−cd2
解题步骤 1
解题步骤 1.1
移动 dd。
2.5cd-3.2cd+4.1d2c-3.5c+5.8d-3d2c-cd22.5cd−3.2cd+4.1d2c−3.5c+5.8d−3d2c−cd2
解题步骤 1.2
从 2.5cd2.5cd 中减去 3.2cd3.2cd。
-0.7cd+4.1d2c-3.5c+5.8d-3d2c-cd2−0.7cd+4.1d2c−3.5c+5.8d−3d2c−cd2
-0.7cd+4.1d2c-3.5c+5.8d-3d2c-cd2−0.7cd+4.1d2c−3.5c+5.8d−3d2c−cd2
解题步骤 2
从 4.1d2c4.1d2c 中减去 3d2c3d2c。
-0.7cd-3.5c+5.8d+1.1d2c-cd2−0.7cd−3.5c+5.8d+1.1d2c−cd2
解题步骤 3
解题步骤 3.1
移动 d2d2。
-0.7cd-3.5c+5.8d+1.1cd2-cd2−0.7cd−3.5c+5.8d+1.1cd2−cd2
解题步骤 3.2
从 1.1cd21.1cd2 中减去 cd2cd2。
-0.7cd-3.5c+5.8d+0.1cd2−0.7cd−3.5c+5.8d+0.1cd2
-0.7cd-3.5c+5.8d+0.1cd2−0.7cd−3.5c+5.8d+0.1cd2
解题步骤 4
移动 5.8d5.8d。
-0.7cd-3.5c+0.1cd2+5.8d−0.7cd−3.5c+0.1cd2+5.8d
解题步骤 5
移动 -3.5c−3.5c。
-0.7cd+0.1cd2-3.5c+5.8d−0.7cd+0.1cd2−3.5c+5.8d
解题步骤 6
将 -0.7cd−0.7cd 和 0.1cd20.1cd2 重新排序。
0.1cd2-0.7cd-3.5c+5.8d0.1cd2−0.7cd−3.5c+5.8d