# How do you evaluate #\frac { x ^ { 2} - 9} { x + 7} \div \frac { ( x + 3) } { 1}#?

##### 1 Answer

Sep 13, 2017

#### Explanation:

firstly, change using the rules of fractions change to a multiplication problem

secondly, factorise and cancel where possible

lastly change from an improper fraction