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OpenStudy (anonymous):
Solve: u2 + 2u - 3 = 0
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OpenStudy (callisto):
u^2 + 2u - 3 = 0 (u+3)(u-1) =0 u+3 =0 or u-1=0 Can you solve it from here?
OpenStudy (anonymous):
i dont know how
OpenStudy (callisto):
Well. for u+3 =0 u+3 =0 -3 from both side, what do you get?
OpenStudy (anonymous):
he get that he's dumb !! LOL
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