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Mathematics 21 Online
OpenStudy (anonymous):

solve the equation 84n^2+49n=0 i got 0,-7/12

OpenStudy (anonymous):

correct, you can check you answers with wolframalpha http://www.wolframalpha.com/input/?i=84n%5E2%2B49n%3D0+ and if you get something wrong you can show your work and ask what was wrong

OpenStudy (anonymous):

7n ( 12n + 7) n = 0 n = -7/12

OpenStudy (anonymous):

That's correct

OpenStudy (anonymous):

oh wow, thanks

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