document.write( "Question 216931: given the function f(x)=-x^2+2x-3\r
\n" ); document.write( "\n" ); document.write( "find f(2)-2*f(0) \n" ); document.write( "

Algebra.Com's Answer #163685 by Earlsdon(6294) $\"\"$ $\"About$

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Given:
\n" ); document.write( " $\"f%28x%29+=+x%5E2%2B2x-3\"$ find:
\n" ); document.write( " $\"f%282%29-2f%280%29\"$
\n" ); document.write( " $\"f%282%29+=+%282%29%5E2%2B2%282%29-3\"$
\n" ); document.write( " $\"f%282%29+=+4%2B4-3\"$
\n" ); document.write( " $\"f%282%29+=+5\"$
\n" ); document.write( " $\"f%280%29+=+0%5E2%2B2%280%29-3\"$
\n" ); document.write( " $\"f%280%29+=+-3\"$
\n" ); document.write( " $\"f%282%29-2f%280%29+=+5-2%28-3%29\"$
\n" ); document.write( " $\"f%282%29-2f%280%29+=+5%2B6\"$
\n" ); document.write( " $\"highlight%28f%282%29-2f%280%29+=+11%29\"$ \n" ); document.write( "

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