SOLUTION: solve using quadratic formula r^2+3r-3=0

SOLUTION: solve using quadratic formula r^2+3r-3=0

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Question 285245: solve using quadratic formula
r^2+3r-3=0
Answer by toidayma(44) (Show Source): You can put this solution on YOUR website!
<-> <-> <-> <-> <->
Note:
You know <-> right? It is also easy to prove: <-> <-> , and that's it.
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