Suppose that the coefficient of the quadratic term and the coefficient of the linear term of a quadratic are equal. If the quadratic has a double root, what is the ratio of the coefficient of the quadratic term to the constant term?
+178 The quadratic is ax^2+ax+b and for this to be a perfect square, it must be (sqrtax+sqrtb)^2 which is ax^2+b+2sqrt(ab)x so we have 2sqrtab=a which means 4ab=a^2 so a/b = 4.
