document.write( "Question 221643: I need a little help on where to continue on this problem\r
\n" ); document.write( "\n" ); document.write( "x^4 - 81\r
\n" ); document.write( "\n" ); document.write( "I got down to (x^2-9(x^2+9) \r
\n" ); document.write( "\n" ); document.write( "Where do I go from there?
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Algebra.Com's Answer #166190 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
x^4 - 81
\n" ); document.write( "I got down to (x^2-9)(x^2+9)
\n" ); document.write( "---
\n" ); document.write( "Factor again to get:
\n" ); document.write( "= (x-3)(x+3)(x^2+9)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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