using quadratic formula solve

Question

|x^2-2x-6| = 4. and answer have to be 1+-sqrt3, 1+-sqrt11 i just not get how to get this.

Answer 1

| x ^ 2 - 2 x - 6 |= 4

Eliminate the absolute value :

x ^ 2 - 2 x - 6 = 4

OR

x ^ 2 - 2 x - 6 = - 4

Your must solve both equations.

In google type:

quadratic equation online

When you see list of results click on:

Free Online Quadratic Equation Solver:Solve by Quadratic Formula

When page be open in rectangle type:

x ^ 2 - 2 x - 6 = 4


and click option: solve it!

You will see solutions of equation :

x ^ 2 - 2 x - 6 = 4

step-bay-step

Then in rectangle type:

x ^ 2 - 2 x - 6 = - 4

and click option: solve it!

You will see solutions of equation :

x ^ 2 - 2 x - 6 = - 4

step-bay-step

Equation :

| x ^ 2 - 2 x - 6 | = 4

has 4 solutions :

1 + sqrt ( 11 )

1 - sqrt ( 11 )

1 + sqrt ( 3 )

and

1 - sqrt ( 3 )

Answer 2

thank you very much the site be very very helpful i try to find site like that yesterday and i not find thanks very much.