document.write( "Question 1040028: Let f(x)=x^2−3, evaluate the following.\r
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Algebra.Com's Answer #654793 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Part A\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+x%5E2+-+3\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%29+=+a%5E2+-+3\" Replace every copy of 'x' with 'a'\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%29%2B3+=+a%5E2+-+3%2B3\" Add 3 to both sides\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%29%2B3+=+a%5E2\" Combine like terms\r
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\n" ); document.write( "\n" ); document.write( "Part B\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+x%5E2+-+3\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%2B3%29+=+%28a%2B3%29%5E2+-+3\" Replace every copy of 'x' with 'a+3'\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%2B3%29+=+a%5E2%2B6a%2B9+-+3\" Expand out \"%28a%2B3%29%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%2B3%29+=+a%5E2%2B6a%2B6\" Combine like terms\r
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\n" ); document.write( "\n" ); document.write( "Part C\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+x%5E2+-+3\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28g%2Bb%29+=+%28g%2Bb%29%5E2+-+3\" Replace every copy of 'x' with 'g+b'\r
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\n" ); document.write( "\n" ); document.write( "\"f%28g%2Bb%29+=+g%5E2%2B2gb%2Bb%5E2+-+3\" FOIL out \"%28g%2Bb%29%5E2\"
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