Mathematics OpenStudy (anonymous):

225^1/blank=15 OpenStudy (anonymous):

$225^{1/a}=15$$\sqrt[a]{225^1}=15$Any number/variable to the 1 power is that number/variable.$x^1=x$$387461873654^1=387461873654$ $\sqrt[a]{225}=15$$(\sqrt[a]{225})^a=(15)^a$$225=15^a$$15×15=225$Therefore$a=2$

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