4 2x 8 5x 0 July 8, 2019 16 32 64 128 0 75x 2x 4 )) 8 5x 13 8 2x 6 )+ 4 (- 1 5x )= 0 4 0 2x 8 1 5x 0 8x 8 4 x 2 5/8 4^5x+2=0 8