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OpenStudy (anonymous):
X-2Y= 2 X*Y=12 Me ajudem nessa.
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OpenStudy (perl):
(1) x*y= 12 (2) x -2y = 2 from (1) y = 12/x substitute into (2) X - 2(12/X) = 2 x - 24/x = 2 x^2 - 24 = 2x x^2 -2x - 24 = 0 x = 6,-4
OpenStudy (anonymous):
'-' nossa obg
OpenStudy (perl):
what language is that?
OpenStudy (anonymous):
portuguese , thank you
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