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OpenStudy (anonymous):
Is it possible to factor x²+2x-1?
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OpenStudy (anonymous):
Imaginary?
jhonyy9 (jhonyy9):
why imaginary ???
OpenStudy (anonymous):
no it is (x+1-sqrt(2))(x+1+sqrt(2))
jhonyy9 (jhonyy9):
x_1,2=(-2+/- sqrt8)/2 =(-1+/- sqrt2)
OpenStudy (anonymous):
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