a,b, and c are constants such that the quadratic ax^2 + bx + c can be expressed in the form 2(x - 5)^2 - 8. When the quadratic 3ax^2 + 3bx + 3c (for the same values of a, b, and c) is expressed in the form n(x - h)^2 + k, what is h?

Guest Jan 7, 2021