document.write( "Question 927164: Please, help me factorise: 2x2 - 8 - (x + 2)(-2x + 6) \n" ); document.write( "
Algebra.Com's Answer #562741 by Edwin McCravy(20055)\"\" \"About 
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document.write( "2x² - 8 - (x + 2)(-2x + 6)\r\n" );
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document.write( "2(x² - 4) - (x + 2)(-2x + 6)\r\n" );
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document.write( "Factorise x² - 4 as (x - 2)(x + 2)\r\n" );
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document.write( "Factorise -2x + 6 as -2(x - 3)\r\n" );
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document.write( "2(x - 2)(x + 2) - (x + 2)[-2(x - 3)]\r\n" );
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document.write( "2(x - 2)(x + 2) + 2(x + 2)(x - 3) \r\n" );
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document.write( "2(x + 2) is a common factor of bath as you see by the red coloring:\r\n" );
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document.write( "2(x - 2)(x + 2) + 2(x + 2)(x - 3)\r\n" );
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document.write( "2(x + 2)[(x - 2) + (x - 3)]\r\n" );
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document.write( "2(x + 2)[x - 2 + x - 3]\r\n" );
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document.write( "2(x + 2)(2x - 5)\r\n" );
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document.write( "Without the red coloring:\r\n" );
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document.write( "2(x + 2)(2x - 5)\r\n" );
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document.write( "Edwin

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