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Mathematics 16 Online
OpenStudy (anonymous):

http://prntscr.com/zayj0 please with with quadric equation iam not good at it

OpenStudy (anonymous):

please help ill be backk in 15 minutes

OpenStudy (anonymous):

to find the value of r, the quadratic equation is used \[r = \frac{ -b \pm \sqrt{b ^{2}-4ac}}{ 2a }\]

OpenStudy (anonymous):

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