How do you condense log_2 4+ 3log_2 9?

1 Answer
Oct 12, 2016

log_2(4)+3log_2(9)=log_2(2916)~~11.5

Explanation:

We will use the following properties of logarithms:

  • xlog_a(b) = log_a(b^x)
  • log_a(x)+log_a(y) = log_a(xy)

With those, we have

log_2(4)+3log_2(9) = log_2(4)+log_2(9^3)

=log_2(4*9^3)

=log_2(2916)