Logarithim?

Question

log2 X=-4

Answer 1

My teacher taught me a pretty cool trick to remember logs. Just remember BEE (Base equals exponent).  so in this case, x=2^-4

Answer 2

log2x=-4

2^-4=x

(1/2)^4=x

1/16=x

pretty sure that's right...i hope. :P

Answer 3

1/16