document.write( "Question 770853: Please help me solve :
\n" ); document.write( "9x^3-3x^2-3x+1=0 \n" ); document.write( "

Algebra.Com's Answer #469822 by MathLover1(20849) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"9x%5E3-3x%5E2-3x%2B1=0\"$ rearrange terms\r
\n" ); document.write( "\n" ); document.write( " $\"9x%5E3-3x-3x%5E2%2B1+=+0\"$ .....group\r
\n" ); document.write( "\n" ); document.write( " $\"%289x%5E3-3x%29-%283x%5E2-1%29+=+0\"$ ....factor\r
\n" ); document.write( "\n" ); document.write( " $\"3x%283x%5E2-1%29-%283x%5E2-1%29+=+0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%283x-1%29%283x%5E2-1%29+=+0\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if $\"%283x-1%29+=+0\"$ then $\"3x=1\"$ => $\"x=1%2F3\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"%283x%5E2-1%29+=+0\"$ then $\"3x%5E2=1\"$ => $\"x%5E2=1%2F3\"$ => $\"x=sqrt%281%2F3%29\"$ \r
\n" ); document.write( "\n" ); document.write( "=> $\"sqrt%281%2F3%29=1%2Fsqrt%283%29\"$ => $\"sqrt%283%29%2F3\"$ or $\"-sqrt%283%29%2F3\"$ \r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( " $\"x=1%2F3\"$
\n" ); document.write( " $\"sqrt%283%29%2F3\"$
\n" ); document.write( " $\"-sqrt%283%29%2F3\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"+graph%28+600%2C+600%2C+-5%2C+5%2C+-5%2C+10%2C+9x%5E3-3x%5E2-3x%2B1%29+\"$
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