1. The problem statement, all variables and given/known data 1.) a.) If the roots of equation px2 - 4x + 1 are equal then find value of p b.) Prove that the equation (k - 2)x2 + 2x - k = 0 has real roots (upside down A symbol) k E R 2. Relevant equations 3. The attempt at a solution I just don't know how to approach these questions. For a.) it says roots are equal meaning theres only 1 root but how do I find out what that root is if I have a constant in there? For b.) I have the same problem. I would usually plug an equation into the quadratic formula to find out if it has real roots but in this case theres a constant so I'm lost. Do I have to find this constant first and if so how?