Solve for x in the following quadratic equation and you will have discovered the beautiful time-honored Golden Ratio: X^2 + X -1 = 0

Hint: Quadratic Formula

If (3!)^2 - (2!)^1 - (1!)^0 - 3! - 2! - 1! - 0! = 7 + x^2 then x^2 - 3x/2 - 4 = ?