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Mathematics 17 Online
OpenStudy (anonymous):

x^7-2x^6+3x^2-2x+5=0 a.5 complex roots. 1,3,5 real roots. possible rational roots +-1,+-5 b.7 complex roots. 2,4,6 real roots. possible rational roots +-1,+-5 c.7 complex roots. 1,3,5 or 7 real roots. Possible rational roots +-1,+-5 d.5 complex roots. 1,3,5 real roots. Possible rational roots +-3/2,+-1,15

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