Left x 4 right ) left 3x 1 right 2 July 8, 2019 16 32 64 128 $ left 0.5 x 4 5x 1 right ) div left x 2 3x 2 right )=$ $ left x 3 x 2 3x 4 right ) div left x 2 2x 1 right )=$
