X 2 7x 2 15 July 8, 2019 16 32 64 128 X 2 7x 15 0 Solve x 2 7x 2 15 X 2 7x 15 5 X 2 7x 15 5 solve by factoring X 2 7x 15 factored X 2 7x 15 factorise X 2 25 2x 2 7x 15 X 2 x 1 x 2 7x 15 0 X 2 x 1 x 2 7x 15 X 2 7x 10 x 2 2x 15 15 3 x 2 )=- 7x 2 x 1
