document.write( "Question 851235: Please help me solve this\r
\n" ); document.write( "\n" ); document.write( "let f(x) = 1/x^2+7x+12. Evaluate f(-2) and find the domain of f.
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Algebra.Com's Answer #512645 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( "f(x) = \"1%2F%28x%5E2%2B7x%2B12%29\"
\n" ); document.write( "f(-2) = \"1%2F%284-14%2B12%29+=+1%2F2\"
\n" ); document.write( "finding When Denominator = 0 (NOT possible)
\n" ); document.write( "x^2+7x+12 = 0 Factoring
\n" ); document.write( "(x+4)(x+3)= 0, x = -4 0r x = -5
\n" ); document.write( "Domain is all real numbers such that x ≠ -4, -5 \n" ); document.write( "
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