Posted by **Shreya** on Wednesday, January 18, 2012 at 11:25pm.

using quadratic formula solve

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

- math-calculus -
**Bosnian**, Thursday, January 19, 2012 at 12:32am
| 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 )

- math-calculus -
**Shreya**, Thursday, January 19, 2012 at 10:26am
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.

## Answer This Question

## Related Questions

- math-calculus - solve equation |x^2-2x-6| using quadratic formula. i not get how...
- College Math II - Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am ...
- pre-calculus 11 - abs x^2/2 -1 =x+3 solve algebraically so if I divide thru by 2...
- math,algebra - can someone help me out factor out this 0=16t^2-122t+180 i have ...
- 8th Grade Algebra - You know how to solve quadratic equations using algebra, ...
- Math - Use the quadratic formula to solve each of the following quadratic ...
- Math - Solve for the zeros of the function using the quadratic formula. 3x^2=-4x...
- Algebra - can show me how to do this with out just squaring 3x^(1/2) - x - 6 = 0...
- Calculus - Hi. How can I integrate 1/(X^3 +1) ? Thank you to anyone who can help...
- Math - Find the exact solution(s) of the system: x^2/4-y^2=1 and x=y^2+1 A)(4,...

More Related Questions