SOLUTION: x2 -2x -13 =0 I need a quadratic formula for this and how to work the problem

SOLUTION: x2 -2x -13 =0 I need a quadratic formula for this and how to work the problem

Algebra.Com

Question 530292: x2 -2x -13 =0 I need a quadratic formula for this and how to work the problem
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x^2 -2x -13 = 0
----
x = [2 +- sqrt(4 - 4*1*-13)]/2
---
x = [2 +- sqrt(4+52)]/2
---
x = [2 +- sqrt(56)]/2
---
x = [2 +- 2sqrt(14)]/2
---
x = 1 +- sqrt(14)
==============
Cheers,
Stan H.
-----------
RELATED QUESTIONS
I need help learning how to work the quadratic equations from beginning to end and... (answered by jim_thompson5910)

I need to pass the real test. So can someone please tell me if i got these questions... (answered by Alan3354)

I need help with this problem? Use the Quadratic Formula to solve the equation.... (answered by solver91311)

Hi, In my Algebra II class we are working on Solving Quadratic Equations by graphing. I... (answered by venugopalramana)

Use the quadratic formula: 3x^2-2x+1=0 I need some seriuos help on this type of... (answered by uma)

I hope this is the right category for the problem I need help with. It states to find... (answered by Nate,Earlsdon)

Please help. I do not understand how to do this. 1) Using the quadratic equation x2 (answered by elima)

Developing and Analyzing the Quadratic Formula This formula, which is called the... (answered by stanbon)

I tried doing the first part of this problem, but not sure if it is right. I dont know... (answered by stanbon)