document.write( "Question 125915: How do you simplify (x-7)^2 \n" ); document.write( "
Algebra.Com's Answer #92290 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%28x-7%29%5E2\" Start with the given expression\r
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\n" ); document.write( "\n" ); document.write( "\"%28x-7%29%28x-7%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%29-7%29%28highlight%28x%29-7%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%29-7%29%28x%2Bhighlight%28-7%29%29\" Multiply the Outer terms:\"%28x%29%2A%28-7%29=-7x\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Bhighlight%28-7%29%29%28highlight%28x%29-7%29\" Multiply the Inner terms:\"%28-7%29%2A%28x%29=-7x\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Bhighlight%28-7%29%29%28x%2Bhighlight%28-7%29%29\" Multiply the Last terms:\"%28-7%29%2A%28-7%29=49\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-7x-7x%2B49\" Now collect every term to make a single expression\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-14x%2B49\" 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-7%29%5E2\" foils and simplifies to \"x%5E2-14x%2B49\"\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"%28x-7%29%5E2=x%5E2-14x%2B49\"\r
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