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Mathematics 20 Online
OpenStudy (anonymous):

(x+8)(x+8)=-9

OpenStudy (anonymous):

x^2+16x+64=-9 x^2+16x+73=0 now use quadratic

OpenStudy (anonymous):

(-b +/- SQRT(b^2-4ac))/2a

hero (hero):

the answer is complex

hero (hero):

(x + 8 + 3i)(x + 8 - 3i)=0

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