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OpenStudy (anonymous):
What are the solutions of x2 + 2x + 9 = 0?
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OpenStudy (anonymous):
use quadratic formula: http://en.wikipedia.org/wiki/Quadratic_formula#Quadratic_formula
OpenStudy (anonymous):
x squared = 1 (that's A) 2x = 2 (that's B) 9 = 9 (that's C)
OpenStudy (anonymous):
Plug those into the formula
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