4x 5 x 2 )( x 4 8x 2 18 =- 2 July 8, 2019 16 32 64 128 4x 5 x 2 )) ⋅ x 4 )- 8x 2 )+ 18 ≥ 2 4x 5 x 2 )( x 4 8x 2 18 ≥ 2
