document.write( "Question 674239: im having trouble finding the domain for f(x)=1/x^2-4x-5 and plugging in 1, -2, -x, 2y and 2-h into f(x) = 2 IxI+ 3x \n" ); document.write( "
Algebra.Com's Answer #419115 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "finding the domain for 
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document.write( "\"f%28x%29=1%2F%28x%5E2-4x-5%29+=+1%2F%28%28x%2B1%29%28x-5%29%29\"
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document.write( "When: (x+1)(x-5)= 0, x = -1  0r x = 5
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document.write( "domain is all real numbers except x = -1  and x = 5
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document.write( "Denominator cannot be ZERO \n" );
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