1=根号下((25+24)*(25-24))=根号49=7
2=根号下(4*25/9*169)=根号4*根号25/根号9*根号169=2*5/3*13=130/3
3=(7/4)*(2/7)*根号24*根号6=0.5*根号144=0.5*12=6
4=18*根号下(3X^2*Y^3*12X^4/Y)=18*根号下(36X^6*Y^2)=18*6*x^3*Y=108X^3Y
5=根号10*根号(1/10)*根号(X*X*Y)=1*X*根号Y=X根号Y
6=跟号下(3/4)*(-)根号下(8/3)*根号下56=-根号下((3/4)*(8/3)*根号下56=-根号4*根号56=-4*2*根号14=-8根号14