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2/y^2 +9/y-7=0 i know its a quadratic but getting there seems too tedious

 May 5, 2016
 #1
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2/y^2 +9/y-7=0

 

You are lucky to get any help with that opener!

 

I'd multiply through by y^2 but you need to note that y cannot =0

 

\(2+9y-7y^2=0\\ 7y^2-9y-2=0 \)

 

 

Now just use the quadratic formula   :)

 May 5, 2016

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