document.write( "Question 150731: (a+b)2 \n" ); document.write( "
Algebra.Com's Answer #110727 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%28a%2Bb%29%5E2\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"%28a%2Bb%29%28a%2Bb%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%28a%29%2Bb%29%28highlight%28a%29%2Bb%29\" Multiply the First terms:\"%28a%29%28a%29=a%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%28a%29%2Bb%29%28a%2Bhighlight%28b%29%29\" Multiply the Outer terms:\"%28a%29%28b%29=a%2Ab\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28a%2Bhighlight%28b%29%29%28highlight%28a%29%2Bb%29\" Multiply the Inner terms:\"%28b%29%28a%29=a%2Ab\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28a%2Bhighlight%28b%29%29%28a%2Bhighlight%28b%29%29\" Multiply the Last terms:\"%28b%29%28b%29=b%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "\"a%5E2%2Bab%2Bab%2Bb%5E2\" Now collect every term to make a single expression.\r
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\n" ); document.write( "\n" ); document.write( "\"a%5E2%2B2ab%2Bb%5E2\" Now combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So \"%28a%2Bb%29%5E2\" FOILS to \"a%5E2%2B2ab%2Bb%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"%28a%2Bb%29%5E2=a%5E2%2B2ab%2Bb%5E2\".
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