document.write( "Question 21916: factor completely over the integers:\r
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\n" ); document.write( "\n" ); document.write( "I've tried pairing the integers in different ways and still can't solve this.
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Algebra.Com's Answer #10557 by AnlytcPhil(1806)\"\" \"About 
You can put this solution on YOUR website!
factor completely over the integers:\r\n" );
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document.write( "121 - 64x2 - 36y2 + 96xy\r\n" );
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document.write( "I've tried pairing the integers in different ways and still\r\n" );
document.write( "can't solve this.\r\n" );
document.write( "Please help.\r\n" );
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document.write( "Thank you.\r\n" );
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document.write( "Sometimes pairing doesn't work and you have to try grouping \r\n" );
document.write( "three factors:\r\n" );
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document.write( "121 - 64x2 - 36y2 + 96xy\r\n" );
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document.write( "Interchange the last two terms\r\n" );
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document.write( "121 - 64x2 + 96xy - 36y2\r\n" );
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document.write( "Factor -4 out of the last three terms\r\n" );
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document.write( "121 - 4(16x2 - 24xy + 9y2)\r\n" );
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document.write( "Factor the expression in the parentheses\r\n" );
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document.write( "121 - 4(4x-3y)(4x-3y)\r\n" );
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document.write( "This is now the difference of two perfect squares\r\n" );
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document.write( "112 - 22(4x-3y)2\r\n" );
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document.write( "[11 - 2(4x-3y)][11 + 2(4x-3y)]\r\n" );
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document.write( "Remove the parentheses inside the brackets\r\n" );
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document.write( "[11-8x+6y][11+8x-6y]\r\n" );
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document.write( "Change the brackets to parentheses\r\n" );
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document.write( "(11-8x+6y)(11+8x-6y)\r\n" );
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document.write( "Edwin\r\n" );
document.write( "AnlytcPhil@aol.com

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