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3 power 4 × 9 power 2 = 9 power x... find the value of x​

Answer»

\Large \fbox \red {Question \: :}

{3}^{4}  \times  {9}^{2}  =  {9}^{x}

Find the VALUE of x.

\Large \fbox \red {Answer \: :}

{3}^{4}  \times   {9}^{2}  =  {9}^{x}

{3}^{4}  \times  ({3}^{2} ) {}^{2}  =   ({3}^{2} ) {}^{x}

{3}^{4}  \times  {3}^{4}  =  {3}^{2x}

Put the POWERS EQUIVALENT since the bases are same.

4 \times 4 = 2x

16 = 2x

x =  \frac{16}{2}

x = <klux>8</klux>

\implies So, the value of x is 8.

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