3次根号64/125-3次根号8-3次根号-23乘以3次根号-0.064

问题描述:

3次根号64/125-3次根号8-3次根号-23乘以3次根号-0.064

3√64/125=4/5 3√8=2 3√0.064=0.4
(0.8-2-3√-23)×0.4=-0.48-3√-23 ×0.4
0.8-2-3√-23 ×0.4=-1.2-3√-23 ×0.4