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Mathematics 17 Online
OpenStudy (anonymous):

r2+11r+35=7

jimthompson5910 (jim_thompson5910):

r^2 + 11r + 35 = 7 r^2 + 11r + 35 - 7 = 0 r^2 + 11r + 28 = 0 (r + 7)(r + 4) = 0 ... note: 7+4 = 11 and 7*4 = 28

jimthompson5910 (jim_thompson5910):

keep going to completely solve for r

OpenStudy (anonymous):

r=-4 and r=-7, so you can check your work :)

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