Find the value of 'a' . . .

Question : Find the value of 'a'

3^a+3^a+1=36

Doubt by Bhavya

Solution  :

3^a+3^a+1=36

3^a+3^a.3¹=36

3^a(1+3)=36

3^a(4)=36

3^a=36/4
3^a=9
3^a=3²
a=2