what is a log?????!!!!!!!

A log is an exponent.

For example log_{2}8 = 3 because 2^{3} = 8.

log_{2}8 = x can be converted to 2^{x} = 8 (where x becomes the exponent)

so, the answer to the log problem (the 'x') becomes the exponent.

A log is a "system" that allows for you to determine what power you need to raise a number to to get a specific number.

Ex: log_{2 }4=x x would be equal to 2, and the base would be the subscrtipt which is 2. So esentiallty what it is saying is that 2 squared equals 4.