1.

If 3^x + 3^x-1 = 108 , find the value of x​

Answer»

3Step-by-step explanation:3  x  +3  x+1 =108 3  x  +3 x  .3  1  =108  4.3  x  =108 3  x  =  4 108 ​   =27 3  x  =3 / 3    ⇒x=3 Now, (9X)  x 1 ​     =(9×3)  3/ 1     =(3 / 3  )  3 1 ​=(3)  3 /1 ×3  =3



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