作业帮1.03*(-0.97)怎么算--要利用平方差公式哦急`````````````````````````````
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/06 06:56:48
1.03*(-0.97)怎么算--要利用平方差公式哦急`````````````````````````````
1.03*(-0.97)怎么算--要利用平方差公式哦
急`````````````````````````````
1.03*(-0.97)怎么算--要利用平方差公式哦急`````````````````````````````
1.03*(-0.97)
=-1.03*0.97
=-(1+0.03)*(1-0.03)
=-(1-0.0009)
=-0.9991
-(1+0.03)(1-0.03)=-1+0.03^2=-0.9991
1.03*(-0.97)
=-1.03*0.98
=-(1+0.03)(1-0.03)
=-(1-0.03^2)
=0.03^2-1
=0.0009-1
=-0.9991