√32-3√1/2+√2
=4√2-3/2√2+√2
=7/2√25的根号2减3乘以二分之根号二是怎样等于二分之七根号二？√32-3√1/2+√2=4√2-3/2√2+√2=(4-3/2+1)√2=7/2√2