document.write( "Question 132303: (3-7x^9)^2 \n" ); document.write( "
Algebra.Com's Answer #96659 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%283-7x%5E9%29%5E2\" Start with the given expression\r
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\n" ); document.write( "\n" ); document.write( "\"%283-7x%5E9%29%283-7x%5E9%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%283%29-7x%5E9%29%28highlight%283%29-7x%5E9%29\" Multiply the First terms:\"%283%29%2A%283%29=9\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%283%29-7x%5E9%29%283%2Bhighlight%28-7x%5E9%29%29\" Multiply the Outer terms:\"%283%29%2A%28-7x%5E9%29=-21x%5E9\"\r
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\n" ); document.write( "\n" ); document.write( "\"%283%2Bhighlight%28-7x%5E9%29%29%28highlight%283%29-7x%5E9%29\" Multiply the Inner terms:\"%28-7x%5E9%29%2A%283%29=-21x%5E9\"\r
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\n" ); document.write( "\n" ); document.write( "\"%283%2Bhighlight%28-7x%5E9%29%29%283%2Bhighlight%28-7x%5E9%29%29\" Multiply the Last terms:\"%28-7x%5E9%29%2A%28-7x%5E9%29=49x%5E18\"\r
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\n" ); document.write( "\n" ); document.write( "\"9-21x%5E9-21x%5E9%2B49x%5E18\" Now collect every term to make a single expression\r
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\n" ); document.write( "\n" ); document.write( "\"49x%5E18-42x%5E9%2B9\" Now combine like terms\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
\n" ); document.write( "\n" ); document.write( "So \"%283-7x%5E9%29%5E2\" foils and simplifies to \"49x%5E18-42x%5E9%2B9\"\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"%283-7x%5E9%29%5E2=49x%5E18-42x%5E9%2B9\"\r
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