SOLUTION: How would you solve for x, using the quadratic formula?
x^2+x-1=0
Thank you!
Algebra.Com
Question 625481: How would you solve for x, using the quadratic formula?
x^2+x-1=0
Thank you!
Found 2 solutions by jim_thompson5910, oscargut:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.
Notice that the quadratic is in the form of where , , and
Let's use the quadratic formula to solve for "x":
Start with the quadratic formula
Plug in , , and
Square to get .
Multiply to get
Rewrite as
Add to to get
Multiply and to get .
or Break up the expression.
So the solutions are or
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If you need more help, email me at jim_thompson5910@hotmail.com
Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you
Jim
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Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
We have to solve:
(a = 1, b = 1, c = -1)
Answer: ,
If you have any doubt or if you have more problems my e-mail is:
mthman@gmail.com
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