MINUS B PLUS OR MINS THE SQUARE ROOT OF B SQUARED MINUS 4 MULTIPLIED BY AC OVER 2A MINUS B PLUS OR MINS THE SQUARE ROOT OF B SQUARED MINUS 4 MULTIPLIED BY AC OVER 2A MINUS B PLUS OR MINS THE SQUARE ROOT OF B SQUARED MINUS 4 MULTIPLIED BY AC OVER 2A MINUS B PLUS OR MINS THE SQUARE ROOT OF B SQUARED MINUS 4 MULTIPLIED BY AC OVER 2A MINUS B PLUS OR MINS THE SQUARE ROOT OF B SQUARED MINUS 4 MULTIPLIED BY AC OVER 2A MINUS B PLUS OR MINS THE SQUARE ROOT OF B SQUARED MINUS 4 MULTIPLIED BY AC OVER 2A