X 2 2 5x 1 0 July 8, 2019 16 32 64 128 X 2 5x 1 0 quadratic formula X 2 5x 1 0 completing the square X 2 √ 5x 1 0 X 2 1 2 5x 2 5 0 X 2 5x 6 x 2 x 1 0 Log1 2 x 2 0 5x 1 7x2 x 7x 5 )- 2 2 5x 1 )- 3 0 X 2 5x 1 )( x 2 5x 2 )- 28 0 5 x2