document.write( "Question 677724: how would you solve this problem: x^3+x^2-225x-225=0 \n" ); document.write( "

Algebra.Com's Answer #421245 by pmatei(79) $\"\"$ $\"About$

You can put this solution on YOUR website!
Start by factoring $\"x%5E2\"$ from the first two terms and $\"-225\"$ from the last two terms:\r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2%28x%2B1%29-225%28x%2B1%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( "Factor the parenthesis $\"%28x%2B1%29\"$ :\r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2-225%29%28x%2B1%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%2B15%29%28x-15%29%28x%2B1%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( "Each parenthesis could be zero, so solutions are:\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+-15\"$
\n" ); document.write( " $\"x+=+15\"$
\n" ); document.write( " $\"x+=+-1\"$ \n" ); document.write( "

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