X 5x 9 0 July 8, 2019 16 32 64 128 X 6 )(- 5x 9 )= 0 X 7 )(- 5x 9 )= 0 X 2 5x 9 0 complete the square X 2 5x 9 0 discriminant X 4 5x 2 9 0 X 3 3x 2 5x 9 0 5x 0 9 3 x 1 5 8 x 9 5x при x 0 4 5x 9 x 3 4 0 X x 1 5x 3 x 9 0 X 3 5x 2 9 0 X 2 5x 9 0 quadratic formula X 3 )( 5x 9 )= 0 X 9 )( 5x 1 )= 0 X 4y 9 0 5x 1 3y