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Mathematics 23 Online
OpenStudy (anonymous):

Solve. 3x2 = –21x – 15. (completing the square)

OpenStudy (anonymous):

x^2 + 7x + 15 = 0 then http://www.wolframalpha.com/input/?i=x%5E2+%2B+7x+%2B+15+%3D+0 look at the complex solution

OpenStudy (anonymous):

thanks :)

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