a. x2 6x+ 7 = 0
b. p2+ 2p+ 1 = 0
c. k2 4k+ 9 = 0
1. Select one of the tiles and drag it to the tile area.
2. Use the sliders in the tray to change the size of the tiles.
3. Double click tiles to change orientation (horizontal/vertical).
4. Click on a tile once to change the sign (+ –).
Note: The color of the tile will turn to red for negative sign.