Which graph correctly solves the equation below? −x2 − 1 = 2x2 − 4 One quadratic graph opening down and one quadratic graph opening up. They do not intersect. One quadratic graph facing up and one quadratic graph facing down. They intersect at negative 1, negative 2 and 1, negative 2. One quadratic graph facing up and one quadratic graph facing down. They intersect at 0, negative 1. Quadratic graph opening up and quadratic graph opening down. They intersect at negative 1, 0 and 1, 0.