X 9 5 4x 2 July 8, 2019 16 32 64 128 X 9 )( 4x 5 )= 20 X 2 6x 9 5 4x x 2 4x 2 9 =( x 5 )( 2x 3 5 4x 3 ) 9 x 2 Решите уравнение 4x 5 x 9 2 9 13 x )- 4x 5 21 2x )+ 9x X 2x 3x 5 4x 9 X 2 3x 5 4x 2 8x 9 9x 2 4x 9 x 5 2 3 4x 9 )- x 5 2x 5 )+ 7 5 4x 6 2 x 9 7x 9 4x 2 x 5 Rút gọn 9 x 5 2 x 2 4x 4 2x 5 )= 2 (- x 9 )- 4x
