13/8+(x-2)/(6-2x)=x/4-251/24=>(9x-31)/8(x-3)=x/4-251/24=>1/8(9x-31)=1/4x(x-3)-[251(x-3)]/24=>9x/8-31/8=1/4x(x-3)-[251(x-3)/24]=>9x/8-31/8=x²/4-269x/24+251/8=>-x²/4+37x/3-141/4=0=>
x²-148x/3+141=0=>x²-148x/3=-141=>x²-148x/3+5476/9=4207/9=>
(x-74/3)²=4207/9=>x-74/3=√4207/3 sau x-74/3=-√4207/3
=>x=74/3+√4207/3 sau x-74/3=-√4207/3
=> x=74/3+√4207/3 sau x=74/3-√4207/3
sper ca am ajutat
