3 2 x 4 ) 5 2x =-( 9x 3 ) 4x July 8, 2019 16 32 64 128 3 2 x 4 )+ 5 2x =-( 9x 3 )+ 4x 9x 4 4x 3 x 2 )( 2x 5 4x 4 5x 3 4(9x + 3) - 9(4x + 3) 3x (x-2)(x+9) 0
