# What is [(7-5)^5 -: 8]-4?

Apr 3, 2016

$0$

#### Explanation:

Solve the brackets first.

$7 - 5 = 2$

Now you have

$\left({2}^{5} / 8\right) - 4$.

In fact, you don't even need to work out ${2}^{5}$ if you know that $8 = {2}^{3}$.

${2}^{5} / {2}^{3} = {2}^{5 - 3} = {2}^{2} = 4$

And, obviously

$4 - 4 = 0$