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NotSoSmart  Feb 1, 2018

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 #1
avatar+6351 
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5.   91/3  *  811/3   =   ( 9 * 81 )1/3   =   ( 9 * 9 * 9 )1/3   =   (93)1/3   =   93/3   =   91   =   9

 

6.   \(\frac{8}{\sqrt[7]{x^{15}}}\,=\,\frac{8}{x^{\frac{15}{7}}}\,=\,8x^{-\frac{15}{7}}\)

hectictar  Feb 1, 2018
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 #1
avatar+6351 
+3
Best Answer

5.   91/3  *  811/3   =   ( 9 * 81 )1/3   =   ( 9 * 9 * 9 )1/3   =   (93)1/3   =   93/3   =   91   =   9

 

6.   \(\frac{8}{\sqrt[7]{x^{15}}}\,=\,\frac{8}{x^{\frac{15}{7}}}\,=\,8x^{-\frac{15}{7}}\)

hectictar  Feb 1, 2018

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