document.write( "Question 557541: (x+9)^2 \n" ); document.write( "
Algebra.Com's Answer #362644 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%28x%2B9%29%5E2\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2B9%29%28x%2B9%29\" Expand. Remember something like \"x%5E2=x%2Ax\".\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%2B9%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%289%29%29\" Multiply the Outer terms:\"%28x%29%2A%289%29=9%2Ax\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Bhighlight%289%29%29%28highlight%28x%29%2B9%29\" Multiply the Inner terms:\"%289%29%2A%28x%29=9%2Ax\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Bhighlight%289%29%29%28x%2Bhighlight%289%29%29\" Multiply the Last terms:\"%289%29%2A%289%29=81\".\r
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\n" ); document.write( "\n" ); document.write( "So we have the terms: \"x%5E2\", \"9%2Ax\", \"9%2Ax\", \"81\" \r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B9%2Ax%2B9%2Ax%2B81\" Now add every term listed above to make a single expression.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B18x%2B81\" Now combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So \"%28x%2B9%29%5E2\" FOILs to \"x%5E2%2B18x%2B81\".\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"%28x%2B9%29%5E2=x%5E2%2B18x%2B81\".
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