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Posted by **ARON** on Wednesday, January 18, 2012 at 5:15pm.

31x^5=1.4x10^-85

what would x equal?

- Math -
**Reiny**, Wednesday, January 18, 2012 at 5:36pmdivide by 31

x^5 = 4.516... x 10^-87

take 5th root

x = appr5.38 x 10^-18

- Math -
**Damon**, Wednesday, January 18, 2012 at 5:48pmI bet you mean

31 x^5 = 1.4 * 10^-85

if so then

x^5 = .04520 * 10^-85

x = 4520 * 10^-90

x = 5.38 * 10^-18

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