document.write( "Question 646306: Please evaluate the expression -x^2+4x-20 x=-3 \n" ); document.write( "
Algebra.Com's Answer #405821 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Just substitute -3 for x and do the arithmetic.\r
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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