# How do you evaluate the expression 2(8-4)^2-10-:2?

Nov 23, 2016

$27$

#### Explanation:

There are 2 terms - work out each one separately.
Brackets, powers,the multiply and divide.

Add and subtract in the last line.

$2 {\left(\textcolor{red}{8 - 4}\right)}^{2} - \textcolor{b l u e}{10 \div 2}$

=$2 \left(\textcolor{red}{{4}^{2}}\right) - \textcolor{b l u e}{5}$

=$\textcolor{red}{2 \times 16} - \textcolor{b l u e}{5}$

=$\textcolor{red}{32} - \textcolor{b l u e}{5}$

=$27$