5x 2 x 5 0 July 8, 2019 16 32 64 128 5x 2 2x 5 0 5x 2 2x 5 0 discriminant X 3 5x 2 x 5 0 2x 3 5x 2 2x 5 0 √ 5x 2 x+ √ 5 0 X 4 5x 2 5 0 X 1 2 5x 5 0 X 3 3x 2 5x 5 0 5x 2 4 x 2 2x 1 )- 5 0 5x 2 2x 5 0 quadratic formula Solve 5x 2 x 5 0 Solve 5x 2 2x 5 0 2 5x 2 x 3 5 0 by factorisation