Question

-(0.5)的平方+1/4-|-(3)的平方-9|-(-2/3)的三次方*16/27

Answer 1

-(0.5)²+1/4-|-3²-9|-(-2/3)³*16/27
=-(1/2)²+1/4-|-18|-(-8/27)*16/27
=-14/+1/4+18+8/27*16/27
=18+128/729
=18又128/729

追问

化成假分数

追答

-(0.5)²+1/4-|-3²-9|-(-2/3)³*16/27
=-(1/2)²+1/4-|-18|-(-8/27)*16/27
=-14/+1/4+18+8/27*16/27
=18+128/729
=13122/729+128/729
=13250/729