Posted by **Aisumi** on Wednesday, September 29, 2010 at 12:17pm.

Solve by completing the square x2 - 2x - 5 = 0. Help please

a)1 plus or minus√6

b)-1 plus or minus√6

c)-3 plus or minus 2√6

d)3 plus or minus 2√6

- Algebra help -
**bobpursley**, Wednesday, September 29, 2010 at 12:26pm
x^2-2x + ...=5

half of -2,then square it.

x^2-2x+1=5+1

(x-1)^2=(sqrt6)^2

you finish.

- Algebra help -
**Aisumi**, Wednesday, September 29, 2010 at 1:11pm
i don't know how?(:<

- Algebra help -
**Jen**, Wednesday, September 29, 2010 at 1:32pm
(x-1)^2=sqrt6^2

Take the square root of both sides.

x-1=sqrt6..

you have to know how to finish from here

## Answer this Question

## Related Questions

- math - Here's my question: Determine if each system has one, two, or no ...
- Math - Find an equation of the line that bisects the obtuse angles formed by the...
- maths - I will be thankfull to you if you help me to solve the below problem: 6...
- Algebra - How would i complete these problems? 1. (√6mn)^5 2. ^3√16x...
- algebra - I worked the problem out, but could you check my work over and see if ...
- Algebra 2 Answer Check - Simplify by rationalizing each denominator. 1. 2/√...
- Math - Find the value of k such that the quadritic poly 3x square plus 2 kx plus...
- Math - Find the value of k such that the quadritic poly 3x square plus 2 kx plus...
- Math - Find the value of k such that the quadritic poly 3x square plus 2 kx plus...
- Math - Find the value of k such that the quadritic poly 3x square plus 2 kx plus...

More Related Questions