2x 2 5x 7 ) ( 3 4x 2 6x July 8, 2019 16 32 64 128 2x 2 5x 7 )+( 3 4x 2 6x 2x 2 5x 7 )+( 3 4x 2 6x find the sum Left 2x 2 + 5x 7 right )+ left 3 4x 2 + 6x right 4x 3 5x 2 7 )+( 2x 2 6x 11 2x 7