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Heres the "Link", my issue circled in red. Can anyone tell me how they get this this step?; How does $6s_k = 6(5^k-1)$? What rule are they using here?

$s_{k+1} = 6s_k - 5s_{k-1} = 6(5^k -1)-5(5^{k-1}-1)$

Thanks everyone! -Kyle

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    First: No need to sign your name: stackexchange automatically adds a signature on the bottom right. Second: Titles are not meant to be greeting lines. They should be descriptive of the content, informative, and help organize the site.2011-03-14

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