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Mathematics 10 Online
OpenStudy (bigbosssaint21):

Determine which polynomial is a perfect square trinomial. 36x^2 - 18x - 9 4a^2 - 28a - 49 25b^2 - 20b + 4 4x^2 - 6x + 9

OpenStudy (anonymous):

It's the third one

OpenStudy (anonymous):

(5b - 2)^2

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