# How do you simplify #3^2(2^2-1^2)+4^2#?

##### 1 Answer

Dec 27, 2016

#### Explanation:

When evaluating expressions with

#color(blue)"mixed operations"# there is a particular order that must be followed.Using the order as set out in the acronym PEMDAS [Parenthesis(brackets) , Exponents(powers), Multiplication, Division, Addition ,Subtraction]

#rArr9(4-1)+16=9xx3+16larr" exponents/bracket"#

#=27+16larr" multiplication"#

#=43larr" addition"#