1(1)设正方形边长为2X,则2x+(4x/跟3)=2 2x=4倍根3-4
(2)设长方形宽为X,则2x+(2x/跟3)=2 x=3-根3
2 x1+x2=-(m+2)=0 m=-2
x^2-5=0 x=正负根5