document.write( "Question 706645: 2r^3 - 54 \n" ); document.write( "

Algebra.Com's Answer #435310 by nerdybill(7384) $\"\"$ $\"About$

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2r^3 - 54
\n" ); document.write( "always factor out what is common first:
\n" ); document.write( "2(r^3 - 27)
\n" ); document.write( "notice, we can rewrite as:
\n" ); document.write( "2(r^3 - 3^)
\n" ); document.write( "\"difference of cubes\" -- special case factoring:
\n" ); document.write( "2(r–3)(r^2+3r+9)
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