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uri
 one year ago
Best ResponseYou've already chosen the best response.2Use the quad formula :http://blogs.discovermagazine.com/loom/files/2008/07/quadratic.jpg

abb50
 one year ago
Best ResponseYou've already chosen the best response.2to check, substitute is (2.5)^2 + 5(2.5) + 22 = 0? if yes, then you're right. if not, try again

abb50
 one year ago
Best ResponseYou've already chosen the best response.2then pick another letter and keep on substituting. i for one think it's faster (only applicable in multiple choice questions)
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