3. 2x ^ 2 - 9 5 - 3x July 8, 2019 16 32 64 128 5 2x 9 )+ 2 x 11 )= 3 3x 4 )+ 46 2x 3 2 4x 2 9 =( 2x 3 )( 3x 5 4x 3 9 2x 5 3x 2 15 2x 2 3 3x 5 2 9 3 x 3 = 9 3 x-5=x+3