(4a+1)( )=16a^2+8a+1

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(4a+1)( )=16a^2+8a+1
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(4a+1)( )=16a^2+8a+1
(4a+1)( )=16a^2+8a+1

(4a+1)( )=16a^2+8a+1
4a+1

4a+1

4a+1
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