Posted by **Monte'** on Tuesday, November 13, 2007 at 9:07pm.

Using the quadratic formula to solve equations.

-12^2 + 12 x-9 = -7x^2

10x^2 + 5x + 12 = 0

6x^2 + 12x = - 1

11x^2 - 7x -1 = 0

2x^2 -18x + 16 = 0

Can u show work to help me out

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