# How do you solve #(2s-1)^{2}=225#?

##### 2 Answers

Jun 18, 2017

#### Explanation:

There is a rule that states

In this case,

Therefore

Subtract

Divide by

You can factorise this as follows :

Set each factor equal to

Jun 18, 2017

#### Explanation:

Although this equation leads to a quadratic trinomial, it is in the form