document.write( "Question 1182015:  Keller performed the work below to express the polynomial in factored form:	
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document.write( "r(x) = x^4  -  8x^2  -  9 	
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document.write( "r(x) = (x^2 + 1)(x^2  -  9) 
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document.write( "(x) = (x + 1)(x  -  1)(x + 3)(x  -  3)
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document.write( "Explain the error he made and complete the factorization correctly.	 \n" );
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| Algebra.Com's Answer #811974 by josgarithmetic(39630)      You can put this solution on YOUR website! \n" ); document.write( " |