10 rewarded for math major?

Question

rewrite the expression:
(log base 2 of x) +(3 log base 2 of y) - (5 log base 2 of z)
it not log[2] ( x y^3 / z^5 ) please help

Answer 1

Then what is it?

That's the answer I get.
log base 2 of ( x y^3 / z^5 )

An equivalent answer is:
log base 2 of (x y^3 z^(-5) )

Are you just confused by the use of log[2] to mean log base 2?

If I could draw subscripts here I would...