Question

Evaluate the expression without using a calculator.

log8816

Answer 1

\[\log _{8}8^{16}\]

Answer 2

What does that mean? I'm only in sixth grade here people!

Answer 3

Its logarithmics

Answer 4

The answer is 16

Answer 5

with this...you drop the exponent. so its \[16\log_{8}8 \]
then, try watching http://patrickjmt.com/solving-logarithmic-equations-example-1/ he has some good videos.

Answer 6

Oh... Wow I'm stupid sometimes.

Answer 7

The answer is 16 but how?

Answer 8

log a a^x = x ... the functions are inverses

Answer 9

8 to the power of something is 8. The power is 1, and multiplying by 16, it's 16.

Answer 10

recall f(f-1(x)) =x

Answer 11

so also a^loga x = x