2 1 5x ) 4 =- 8 July 8, 2019 16 32 64 128 2 1 5x )+ 4 =- 8 1 2 5x 2 8 10 4 6x 2 5x 3 )- 4 7x 1 )=- 88 1 2 5x 16 )- 3 2 x 8 )=- 4 2 4 *( 5x 1 )=- 3 *( 4x 0 8 1 2x 4 2 1 5x 8 8 2 1 5x 6 2x 4 15 5x 1 2 8x 4 4 2 1 4 1 5x 0 8 5x 10 x Solve 2 1 5x )+ 4 =- 8 2 5x 1 4 5 8x 0 25 x 5x 1 4 8x 2 20x 2 5x 3 1 5x 2 )= 4 8 2 5x 4 1 5 8 2 3 5x 1 =(- 4 9 8