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OpenStudy (anonymous):
I am having trouble with this quadratic equation: x^2-x-2=0 I got: (x-2)(x+1)=0 x^2+ x - 2x - 2 x^2 - x - 2 x= 2 or x=-1 I am unsure, because the -1 does not work..
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OpenStudy (anonymous):
your answer is correct man
OpenStudy (saifoo.khan):
Yeah, i will work!
OpenStudy (blacksteel):
-1 does work, actually. (-1)^2 -(-1) - 2 = 1 + 1 - 2 = 0.
OpenStudy (anonymous):
Yes, Blacksteel is correct
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