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Use completing the square to solve for x in the equation (x minus 12) (x + 4) = 9.
x = –1 or 15
x = 1 or 7
x = 4 plus-or-minus StartRoot 41 EndRoot
x = 4 plus-or-minus StartRoot 73 EndRoot
![Use Completing The Square To Solve For X In The Equation X Minus 12 X 4 9 X 1 Or 15 X 1 Or 7 X 4 Plusorminus StartRoot 41 EndRoot X 4 Plusorminus StartRoot 73 E class=](https://us-static.z-dn.net/files/ddd/fb7dd7a6510a3d4f561f74edf93645e7.png)