-12x² - 2x + k = 0 There is a repeated real solution if the discriminant, what's under the radical in the quadratic formula, b² - 4ac = 0 a = -12, b = -2, c = k b² - 4ac = 0 (-2)² - 4(-12)(k) = 0 4 + 48k = 0 48k = -4 k = k = Edwin