Use Algebra To Solve Puzzle

For Any Equation:

ax^2 +bx+c=0

"x" can be found by:

-b +/- sqrt(b^2-4ac)

2a

In words:

The quantity of the opposite of b, plus or minus, the square root of the quantity, b squared minus four times a times c, all divided by two times a.

The quardartic formula can be used to find the x intercepts of a porabola shaped graph.