9x 2 2x 7 )( x 4 July 8, 2019 16 32 64 128 3x 7x 2 )- 2x 9x 7 якщо x =- 4 9x2 2x 7 4x2 7x 2 Which expression is equivalent to 9x 2 2x 7 )( x 4 5x 4 x 2 )+( 7 9x 2 2x 4 x 3 2x 7 2x 9
