X 2 7x 54 July 8, 2019 16 32 64 128 X 2 7x 54 =- 4x X 2 7x 54 0 X 4 7x 3 9x 2 27x 54 X 2 y 3 và 7x 3y 54 Factor x 2 −7x−54=−4x
