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Mathematics 15 Online
OpenStudy (anonymous):

WILL give MEDAL. :) I understand a little bit on how to do this, I just need help. I'm pretty sure it's a... But I don't know. Help? 81+18y+y^2 100-20y+y^2 144+24y+y^2 121+11y+y^2 Which expression is NOT a perfect square trinomial?

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