已知:(x-7)²+121,(y+1)³=-0.064,求根号x-2-根号x+10y+³根号245y的值

已知:(x-7)²+121,(y+1)³=-0.064,求根号x-2-根号x+10y+³根号245y的值
已知:(x-7)²+121,(y+1)³=-0.064,求根号x-2-根号x+10y+³根号245y的值

已知:(x-7)²+121,(y+1)³=-0.064,求根号x-2-根号x+10y+³根号245y的值
x=18或-4,Y=-0.2
其它代入,你自己去算