Question

log(x²-21)=2

Answer 1

\[x^2 - 21 = 10^2\]

Answer 2

base 10?

Answer 3

no base?

Answer 4

base is 10.

Answer 5

\[\large \log(x^2-21)=2\]


\[\large x^2-21=10^2\]


\[\large x^2-21=100\]


\[\large x^2=100+21\]


\[\large x^2=121\]


\[\large x=\pm\sqrt{121}\]


\[\large x=\pm11\]


\[\large x=11 \ \text{ or } \ x = -11\]

Answer 6

If no base is stated, it's assumed to be base 10.

Answer 7

yes if they leave it blank its naturally 10

Answer 8

sorry forgot to mention that