X 2 169 0 July 8, 2019 16 32 64 128 X 2 169 0 solve by factoring X 2 26x 169 0 X 2 24x 169 0 X 4 2 169 0 X 3 2 169 0 X 4 26x 2 169 0 X 5 x 2 169 )= 0