document.write( "Question 1209131: Fill in the blank with a constant, so that the resulting expression can be factored as the product of two linear expressions:
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Algebra.Com's Answer #847724 by mccravyedwin(407)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "2mn - m + 7n - ___\r\n" );
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document.write( "Let's try to factor it, thinking of \"FOIL\":\r\n" );
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document.write( "\"%28%22__%22+%2B-+%22__%22%29%28%22__%22+%2B-+%22__%22%29\"\r\n" );
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document.write( "Let's try 2m and n for the \"Firsts\"\r\n" );
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document.write( "\"%282m+%2B-+%22__%22%29%28%22n%22+%2B-+%22__%22%29\"\r\n" );
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document.write( "Then to get the 7n for the \"Inners\" we have to put a +7 in the right of the first parentheses.\r\n" );
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document.write( "\"%282m+%2B7%29%28%22n%22+%2B-+%22__%22%29\"\r\n" );
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document.write( "Finally to get the -m for the \"LASTS\" we must put \"-expr%281%2F2%29\" in the remaining blank.\r\n" );
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document.write( "\"%282m+%2B7%29%28n+-+expr%281%2F2%29%29\"\r\n" );
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document.write( "So when you FOIL that out you get\r\n" );
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document.write( "\"2mn-m%2B7n-expr%287%2F2%29\"\r\n" );
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document.write( "So the term we have to add is the \"OUTERS\" \"-expr%287%2F2%29\".\r\n" );
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document.write( "[You already had a - sign, so what we'd put in the blank would be \"expr%287%2F2%29\". \r\n" );
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document.write( "Edwin

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