For the following quadratic equation, find the discriminant.
4, x, squared, minus, 45, x, minus, 269, equals, 7, x, squared, minus, 3, x, plus, 7
4x^2−45x−269 = 7x^2−3x+7
4, x, squared, minus, 45, x, minus, 269, equals, 7, x, squared, minus, 3, x, plus, 7
4x^2−45x−269 = 7x^2−3x+7