(29+2x)(22+2x)=1.25*29*22
(2x+25.5+3.5)(2x+25.5-3.5)=29*11*2.5,
化为(2x+25.5)^2=29*11*2.5+3.5^2=809.75,
∴2x+25.5=土√809.75,
∴x=(-25.5土√809.75)/2=(-51土√3239)/4.
(29+2x)(22+2x)=1.25*29*22
(2x+25.5+3.5)(2x+25.5-3.5)=29*11*2.5,
化为(2x+25.5)^2=29*11*2.5+3.5^2=809.75,
∴2x+25.5=土√809.75,
∴x=(-25.5土√809.75)/2=(-51土√3239)/4.