9 8 z ) 5 2z 7 )= 0 July 8, 2019 16 32 64 128 9 8 z )+ 5 2z 7 )= 0 - 5(0 8z - 1 2) = - z + 7 2 2z + 5 = 9 z = −9 7 − (−5 8) 5 8/7=8/z
