SOLUTION: Hello,
I need help with the following problem:
For what integer {{{ n }}} is {{{ (10^n-1)(10^n+1) }}} = 999,999,999,999?
Algebra.Com
Question 1047624: Hello,
I need help with the following problem:
For what integer is = 999,999,999,999?
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(10^n-1)(10^n+1) = 999,999,999,999
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10^(2n)-1 = 1,000,000,000,000-1
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10^(2n) = 10^12
2n = 12
n = 6
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Cheers,
Stan H.
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
For what integer n is ?
---
2n = 12
n = 6
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