document.write( "Question 299485: reverse foil/or trial factoring/solve\r
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document.write( "16x^4-81 \n" );
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Algebra.Com's Answer #215163 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 16x^4-81 \n" ); document.write( "(4x^2+9)(4x^2-9) \n" ); document.write( "(4x^2+9)(2x+3)(2x-3) ans. \n" ); document.write( " |