document.write( "Question 97977: x^3-81x=0 \n" ); document.write( "

Algebra.Com's Answer #71276 by tutorcecilia(2152) $\"\"$ $\"About$

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Factoring:
\n" ); document.write( " $\"%28x%5E3-81x%29\"$ =0
\n" ); document.write( " $\"%28%28x%29%28x%5E2-81%29%29\"$ =0
\n" ); document.write( "(x)(x+9)(x-9)=0
\n" ); document.write( ".
\n" ); document.write( "To find the x-intercepts, set each factor equal to zero and solve for the x-term:
\n" ); document.write( "x=0
\n" ); document.write( ".
\n" ); document.write( "x-9=0
\n" ); document.write( "x=9
\n" ); document.write( ".
\n" ); document.write( "x+9=0
\n" ); document.write( "x=-9 \n" ); document.write( "

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