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Determin the value of x   …

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Determin the value of x

      {[3]3}=37x

  • 1 answers

Neeraj Sharma 7 years, 1 month ago

{tex}{\left\{ {{{\left( 3 \right)}^3}} \right\}^7} = {3^{7x}}{/tex}

{tex}{3^{21}} = {3^{7x}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \left[ {{\mkern 1mu} {{\left( {{a^m}} \right)}^n} = {a^{mn}}} \right]{/tex}

{tex}7x = 21{/tex}

{tex}x = {{21} \over 7}{/tex}

{tex}x = 3{/tex}

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