Question

$log ( {x}^{2} - 21) = 2$
solve for x or find value of x​

Answer 1

Answer:

so the answer is 11

Step-by-step explanation:

answer will be

-11 ,+11

Answer 2

Answer:

+ or - 11

Step-by-step explanation:

as the base is not given we can take it as 10

2 can be written as log 100 to the base 10

log and base on both sides get cancelled