2 *(- x 3 7x 15 July 8, 2019 16 32 64 128 X 3 7x 2 15x 9 X 3 7x 2 15x 105 X 3 7x 2 15x 9 0 2x 3 7x 15 180 X 3 7x 2 7x 15 0 2 ∙ (- x 3 7x 15 2 5 =( x 3 )/( 7x 15 2 x 3 1 7x 15 3 X 3 7x 2 15x 25 0 X 3 7x 2 15x 9 factored X 3 7x 2 15x 25 2x 3 7x 15 2x 3 7x 2 15x 2x 3 7x 15 2 2x 3 7x 2 15x 0