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Mathematics 20 Online
OpenStudy (anonymous):

solve by completeing the square. z^2+16z+49=0

OpenStudy (anonymous):

what you got?

OpenStudy (anonymous):

i knew you would say that lol

OpenStudy (anonymous):

8+-sqrt49

OpenStudy (anonymous):

nope, is it mental math again? :D

OpenStudy (anonymous):

that was mental math

OpenStudy (anonymous):

lol

OpenStudy (anonymous):

8+-sqrt15

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

pencil and paper math, :)

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