2 x 2 121 0 July 8, 2019 16 32 64 128 Х 2 121 0 X 2 121 0 solve by factoring X 2 121 0 square root X 2 121 0 square root method X 2 121 0 solve X 2y 2 x 2 5y 2 22x 121 0
