Question

180(x-2)+360/x=1340

Answer 1

原式

====180X^2-360X+360=1340

====X^2-2X+2=67/9

====X^2-2X=85/9

====X^2-2X+1=94/9

====(X-1)^2=94/9

X-1=正负根号内94/9

X1==1+根号内94/9

X2==1-根号内94/9