Related Post: 5 X 0 15 X 5 2x )+ 15 0 X 5 2x )+ 15 0 Standard Form 5 X 3 )-( 5x 15 )= 0 X 5 2x )+ 15 0 Quadratic Formula Solve $5 X 2 15x 0 3 5 X 2 3 0 15 Px2 2 Root 5 X 15 0 155 X 0 5 4 5 X 0 15