i dont know if its even possible but how do you factor x^2 + 2x 1?
7 Answers

… x^2 + 2x – 1
Factor by “completing the square”
… x^2 + 2x = 1
or x^2 + 2(x)(1) = 1
or x^2 + 2(x)(1) + 1^2 = 1^2 + 1
or (x + 1)^2 = 2
or x + 1 = ± √2
or x + 1 ± √2 = 0
… x^2 + 2x – 1
= (x + 1 – √2)(x + 1 + √2)
Verified: http://www.wolframalpha.com/input/?i=x%5E2+%2B+2x+…

X 2 2x 1 Factored

Factor X 2 2x 1

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RE:
how to factor x^2 + 2x 1?
i dont know if its even possible but how do you factor x^2 + 2x 1?

Use the quadratic formula to solve
ax²+bx+c=0
where
a=1
b=2
c=1
x = [b ± √(b²4ac)] / (2a)
= [2 ± √(2² – 4·1·(1))] / (2·1)
= [2 ± √8] / 2
= [2 ± 2√2] / 2
= 1 ± √2
x² + 2x – 1 = (x + 1√2)(x + 1+√2)

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(x1)(x1)=0 so x equals 1

(2+sqrt8)/2 = (1+2*sqrt2)/2
,’, x = 1/2 + sqrt 2 or x = 1/2 – sqrt 2