2 8x 32 2 3 July 8, 2019 16 32 64 128 2 8x 32 2 3 =- 90 2 8x 32 ) 2 3 =- 30 2 8x 32 1 vĂ 2 3 =- 30 2^x + 8^x = 130 2+3x 8