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Solve the equation: x^2 + 5x + 22 = 0
A. 0
B. 2.5
C. 15.75
D. No solution
 9 months ago
 9 months ago
Solve the equation: x^2 + 5x + 22 = 0 A. 0 B. 2.5 C. 15.75 D. No solution
 9 months ago
 9 months ago

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uriBest ResponseYou've already chosen the best response.2
Use the quad formula :http://blogs.discovermagazine.com/loom/files/2008/07/quadratic.jpg
 9 months ago

abb50Best ResponseYou've already chosen the best response.2
to check, substitute is (2.5)^2 + 5(2.5) + 22 = 0? if yes, then you're right. if not, try again
 9 months ago

abb50Best ResponseYou've already chosen the best response.2
then pick another letter and keep on substituting. i for one think it's faster (only applicable in multiple choice questions)
 9 months ago
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