3 3 left (- 2x 5 right )=- 4x 6 July 8, 2019 16 32 64 128 5 left(3-x right) -2x+6 3 left(x-5 right)=21 2 + 3 + 4 + 5 + 6 Left(4x^ 2 +5-x right)- left(6+3x-2x^ 2 right) 3 left(4x+5 right)