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Mathematics 13 Online
OpenStudy (anonymous):

need to find the solution(s) to this equation!

OpenStudy (anonymous):

\[3x ^{-2}-31x ^{-1}+56=0\]

OpenStudy (amistre64):

a = 1/x

OpenStudy (amistre64):

a = 31/6 +- sqrt(31^2 -(4)(56)(3))/6

OpenStudy (amistre64):

31/6 +- 17/6 a = 48/6 = 8 a = 14/6 = 7/3

OpenStudy (amistre64):

8 = 1/x; x = 1/8 7/3 = 1/x; x = 3/7

OpenStudy (anonymous):

thank you for writing that all out for me. Helpful! So my question is, are the final 2 answers 1/8 and 3/7?

OpenStudy (amistre64):

yes :) i cant see any mistakes in my figureings...so yes :)

OpenStudy (anonymous):

You rock. THANKS!

OpenStudy (amistre64):

was i right :)

OpenStudy (anonymous):

YES! You get a medal!

OpenStudy (amistre64):

yay!! :)

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