X^2+2x-1=0 find factor

1.	X^2+2x-1=0 find factor
Answer» It can done by completing the square method X^2+2X-1=0{X^2+2X +1}-1-1=0 (adding and subtracting1)(X+1)^2-2=0(X+1)^2=2Squareroot both sidesX+1=2^(1/2) or X+1=-2^(1/2)X=-1+2^(1/2) or X=-1-2^(1/2)

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