Question

plz solve this indices sum

Answer 1

7 pwr 2n+3 - 7 pwr 2n+4 ➗ 7 3n+3 divided 2 by 3

Answer 2

Heya

We use the following parts :

${7}^{2n + 3} = 7( {7}^{2n + 2} )$
${( {7}^{3} )}^{ \frac{2}{3} } = {7}^{2}$
${( {7}^{m} )}^{n} = {7}^{m \times n}$


Simplifying the above :

$\frac{ {7}^{2n + 3} - {( {7}^{2})}^{n + 2} }{ {( {7}^{3}) }^{ \frac{2n + 2}{3} } }$

$= \frac{6( {7}^{2n + 2} )}{ {7}^{2n + 2} }$

$= 6$


Hope it helps ^_^