17 5 2x 9 )= 4 2x 7 July 8, 2019 16 32 64 128 - 9(2x - 7) + 17(x - 1) = 0 2x ^ 4 - 17x ^ 2 - 9 = 0 17 9-(2 7+x)=20 3 17- 2 5x =2