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Mathematics 23 Online
OpenStudy (sammietaygreen):

Solve x^3 = -1

OpenStudy (alexandervonhumboldt2):

\[x^3=-1\] \[x=\sqrt[3]{-1}\] \[x=-1\]

OpenStudy (alexandervonhumboldt2):

check: x^3=-1 (-1)^3=-1 -1=-1 correct

OpenStudy (sammietaygreen):

There's two answers. Would it be -1 and 1+/-i(sqrt3) over 2?

Parth (parthkohli):

not completely.\[x^3 + 1 = 0\]\[\Rightarrow (x+1)(x^2 - x + 1) = 0\]\[\Rightarrow x = -1, \frac{1\pm i\sqrt{3} }{2}\]

OpenStudy (sammietaygreen):

exactly^^

OpenStudy (sammietaygreen):

Thank you both!

OpenStudy (alexandervonhumboldt2):

yeah i forgot of the second answer

OpenStudy (anonymous):

hey could somone here help me with my question when yall are done?

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