Question

if 2log(1+x)=log 81 find x​

Answer 1

Answer:

8

Step-by-step explanation:

Hope you understand!

Answer 2

Answer:

-10 (or) 8.

Step-by-step explanation:

    $2log(1+x)=log81$

=>  $log(1+x)^{2}=log($ ± $9)^{2}$

=>  $1+x =$ ± 9

=>  x = -1 ± 9

=> x = -10 (or) 8.