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Mathematics 24 Online
OpenStudy (anonymous):

factor x^2-7x+8

OpenStudy (tommo_lcfc):

(x+1)(x-8)

OpenStudy (tommo_lcfc):

That's not right! Use the quadratic formula. This gives \[x = 1/2(7+\sqrt{17})]\] or \[x = 1/2(7-\sqrt{17})]\]

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