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Mathematics 20 Online
OpenStudy (anonymous):

(3x+1)^2

OpenStudy (anonymous):

9x^2+6x+1

OpenStudy (a_clan):

\[(a+b)^{2} = a ^{2}+2ab+b ^{2}\]

OpenStudy (anonymous):

correct slnkktn

OpenStudy (anonymous):

9x^2+6x+1

OpenStudy (anonymous):

a^2-2a-15

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