-6.24*3的平方+31.2*(-2)的立方+(-0.15)*624=?
网友回答
-6.24*3的平方+31.2*(-2)的立方+(-0.15)*624
=-6.24*9+6.24*(-80)+(-15)*6.24
=6.24*(-9-80-15)
=6.24*(-104)
=-648.96
======以下答案可供参考======
供参考答案1:
-6.24*3的平方+31.2*(-2)的立方+(-0.15)*624
=-6.24*9+31.2*(-8)-15*6.24
=-6.24*9-6.24*80-15*6.24
=-6.24*(9+80+15)
=-6.24*104
=-648.96
供参考答案2:
-6.24*3的平方+31.2*(-2)的立方+(-0.15)*624
=?原式=-6.24*3²+31.2*(2)²+(-0.15)*624
=-6.24*9+31.2*(-8)-15*6.24
=-6.24*9-6.24*80-15*6.24
=-6.24*(9+80+15)
=-6.24*104
=-648.96
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