已知5-2x立方根与2y+1立方根互为相反数,求x-y的立方根
问题描述:
已知5-2x立方根与2y+1立方根互为相反数,求x-y的立方根
答
5-2x+2y+1=0
x-y=3
x-y的立方根=3次根号3