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OpenStudy (anonymous):
9r^2-5r-10 Can you show the work,please
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OpenStudy (anonymous):
9r^2-5r-10 Quadratic formula a=9 b=-5 c=-10 \[x=(-b \pm \sqrt{b^{2}-4ac})/2a\]
OpenStudy (anonymous):
plug the numbers in XD do you need help with that? :)
OpenStudy (anonymous):
XD
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