化简 (8x+5.4)-(3x-6.7)4x-3.6-1.4x+25.2 x·x·x+a+a+a 4y-(2y-6)+4 3a·a·a+a+5-4.2 6x*(1.4-0.75+2.65) 4m+3a+2a-1.5m 6.4-y-2.8-3y
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化简 (8x+5.4)-(3x-6.7)4x-3.6-1.4x+25.2 x·x·x+a+a+a 4y-(2y-6)+4 3a·a·a+a+5-4.2 6x*(1.4-0.75+2.65) 4m+3a+2a-1.5m 6.4-y-2.8-3y
化简 (8x+5.4)-(3x-6.7)
4x-3.6-1.4x+25.2 x·x·x+a+a+a 4y-(2y-6)+4 3a·a·a+a+5-4.2
6x*(1.4-0.75+2.65) 4m+3a+2a-1.5m 6.4-y-2.8-3y
化简 (8x+5.4)-(3x-6.7)4x-3.6-1.4x+25.2 x·x·x+a+a+a 4y-(2y-6)+4 3a·a·a+a+5-4.2 6x*(1.4-0.75+2.65) 4m+3a+2a-1.5m 6.4-y-2.8-3y
1、8x+5.4-3x+6.7=5x-1.3
2、4x-1.4x+25.2 -3.6=2.6x+22.6
3、x³+3a
4、4y-2y+6+4 =2y+10
5、3a³+0.8
6、6x×3.3=19.8x
7、2.5m+5a
8、3.6-4y
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