4) x-4 8 2x 5 13 3-x 1 July 8, 2019 16 32 64 128 X 4 8 2x 5 13 3 x 1 4) x-4 8 2x+5 13 3-x 1 4 x 4 x 4 x 4 x -8 3= -12 5