# SPM Practice Question (Quadratic Equation) - Question 11

Question 11 (Quadratic equation has two equal roots)

The quadratic equation ${x}^{2}-4x-1=2p\left(x-5\right)$  , where p is a constant, has two equal roots.  Calculate the possible values of p.

[Note : Two equal roots, discriminant,${b}^{2}-4a\mathrm{c=}$0 ]