# How do you complete the square to solve #-x^2-2x+3= 0#?

##### 2 Answers

Solutions:

#### Explanation:

If you have to solve the equation you can multiply all by -1:

It's always more simple to work with positive numbers =)

So we can write our equation adding (or subtracting) what is missing to obtain a perfect square:

If you want to solve the equation you have to obtain 4 in the square

#### Explanation:

A perfect square trinomial is in the form

Multiply the equation times

The left side of the equation can be made into a perfect square trinomial by completing the square. This will enable the equation to be solved for

Add

Divide the coefficient of the

There is now a perfect square trinomial on the left side of the equation.

Take the square root of both sides.

If

If