[tex] \sqrt[3]{ \frac{5x + 2}{x + 3} } + \sqrt[3]{ \frac{x + 3}{5x + 2} } = \frac{13}{6} [/tex]

∛[(5x+2)/(x+3)]=tt+1/t=13/66t²-13t+6=0D=169-144=25t1=(13-5)/12=2/3⇒∛[(5x+2)/(x+3)]=2/3(5x+2)/(x+3)=8/27135x+54=8x+24135x-8x=24-50127x=-26x=-26/127t2=(13+5)/12=3/2⇒∛[(5x+2)/(x+3)]=3/2(5x+2)/(x+3)=27/840x+16=27x+8140x-27x=81-1613x=65x=5