# How do you solve by completing the square #a^2 -6a-5=0#?

##### 2 Answers

#### Answer:

**Solution:**

#### Explanation:

Solution:

#### Answer:

#### Explanation:

When we want to make a square out of a quadratic polynomial, we need to look at the b-coefficient of the polynomial (assuming

We know that

Therefore our "a" is just going to be a, and b is going to be some number for which :

So our square is going to be

Luckily, we are free to add a zero to the equation anytime we want. Like this :

Now we can square the equation, watch out for the plus/minus signs :

And we are finished.