Left 2x 3 right 2 left 3x right 4 July 8, 2019 16 32 64 128 Left 2x 3 right )+ left 4x left 3x 2 right ) right Left 2x 3 - x 2 + 4 right )+ left 3x 2 right Left(3-2x+2 x^ 2 right)- left(4x-5+3x^ 2 right) 2 left 3x 4 right )+ 3 left 2x 5 right )=- 43
