document.write( "Question 148775: (x + 9) (x - 4) \n" ); document.write( "
Algebra.Com's Answer #109111 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%28x%2B9%29%28x-4%29\" Start with the given expression\r
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\n" ); document.write( "\n" ); document.write( "Now let's FOIL the expression\r
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\n" ); document.write( "\n" ); document.write( "Remember, when you FOIL an expression, you follow this procedure:\r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%28x%29%2B9%29%28highlight%28x%29-4%29\" Multiply the First terms:\"%28x%29%2A%28x%29=x%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%28x%29%2B9%29%28x%2Bhighlight%28-4%29%29\" Multiply the Outer terms:\"%28x%29%2A%28-4%29=-4x\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Bhighlight%289%29%29%28highlight%28x%29-4%29\" Multiply the Inner terms:\"%289%29%2A%28x%29=9x\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Bhighlight%289%29%29%28x%2Bhighlight%28-4%29%29\" Multiply the Last terms:\"%289%29%2A%28-4%29=-36\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-4x%2B9x-36\" Now collect every term to make a single expression\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B5x-36\" Now combine like terms\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
\n" ); document.write( "\n" ); document.write( "So \"%28x%2B9%29%28x-4%29\" foils and simplifies to \"x%5E2%2B5x-36\"\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"%28x%2B9%29%28x-4%29=x%5E2%2B5x-36\"\r
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