X 2 4x 7 4 July 8, 2019 16 32 64 128 X 2 4x 7 =- 4x 2 5 4 x ) 2 (- 4x 7 7 x 2 )+ 4x 2x 4 F x )=- 4x 2 4x 7 X 4 )( 4x 2 8x 7 3x 2 4x 2 x 2 4x 7 7 4x 4 )- 2 x 1 )= 30 4x 7 x 4 2 x 15 4x 2 x 3 )=- 7 4x 1 7 4x 2 6x x 2 7 4x X2 4x 7 =( x 4 X 2 4x 9 =- 4x 7 Daca 21 x 2 4x 7 4 Y 3 x 2 4x 4 )+ 7 X 2 y 2 4x 4y 7 0
