document.write( "Question 671071: (4a − 1)(4a + 1) \n" ); document.write( "

Algebra.Com's Answer #417255 by fafa(13) $\"\"$ $\"About$

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(4a − 1)(4a + 1) = 16a^2 + 4a - 4a -1
\n" ); document.write( " = 16a^2 - 1 \n" ); document.write( "

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