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January 19, 2017
Posted by **lili** on Wednesday, December 19, 2012 at 8:30pm.

- math please help!! -
**Reiny**, Wednesday, December 19, 2012 at 10:14pmAre we solving?

Why is one x large, the other small?

2x^2 - 4x - 9 =

x = (4 ± √88)/4

= (4 ± 2√11)/4

= (2 ± √22)/2