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$\\var{a}^5$

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$\\var{a}\\var{a}\\var{a}\\var{a}\\var{a}$

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${\\var{5a}}$

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$5$

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The expression     $\\var{a}\\times\\var{a}\\times\\var{a}\\times\\var{a}\\times\\var{a}$     can be written as . . .

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Write multiples as power

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