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Mathematics 7 Online
OpenStudy (anonymous):

chapter 5:Indices and Logarithms simplify 25^n-5^2n-1

OpenStudy (jhannybean):

\[25^n - 5^{2n} -1\] this?

OpenStudy (anonymous):

|dw:1417237143325:dw|

OpenStudy (anonymous):

but the answer given in my book say is |dw:1417237519591:dw|

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