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 ) Console . WriteLine ( a + " ▁ " + b + " ▁ " + H ) ; else Console . WriteLine ( b + " ▁ " + a + " ▁ " + H ) ; } else Console . ( " - 1" ) ; }