document.write( "Question 42735: Factor each expression\r
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Algebra.Com's Answer #27880 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
Okay, factor out the (b-c) first, then factor what remains...so we have
\n" ); document.write( "a^2(b - c) - 16b^2 (b - c) =
\n" ); document.write( "(b - c)(a^2 - 16b^2) =
\n" ); document.write( "(b - c)(a + 4b)(a - 4b)
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