# How do you solve #n^2-9n=-18#?

##### 1 Answer

May 8, 2017

#### Explanation:

Move -18 to the other side of the 'equals to' sign

Find two numbers which when added/subtracted will give the coefficient of n and when multiplied will give the constant number (which has no variables beside it )

Then factorise common variables/constants

There are two possible answers

So