text: applying the linear equation formula to find both the roots
code: double root1 = ( H * H + Math . sqrt ( D ) ) / 2 ; double root2 = ( H * H - Math . sqrt ( D ) ) / 2 ; double a = Math . sqrt ( root1 ) ; double b = Math . sqrt ( root2 ) ; if ( b >= a ) System . out . print ( a + " ▁ " + b + " ▁ " + H ) ; else System . out . print ( b + " ▁ " + a + " ▁ " + H ) ; } else System . out . print ( " - 1" ) ; }