document.write( "Question 966110: Need help with a problem. If f(x)=(x-B)/(x-A), f(-3)=0, and f(5) is undefined, what are the values of A and B? \n" ); document.write( "
Algebra.Com's Answer #590494 by josgarithmetic(39618)\"\" \"About 
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x-A=0 will be 0 if A=-x, or x=-A, and f(x) will be undefined at x=-A.
\n" ); document.write( "MEANING: Your denominator is \"x-5\".\r
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\n" ); document.write( "\n" ); document.write( "x-B=0 means that x=B. You wanted \"-3-B=0\", because that is according to \"f%28-3%29=0\", a zero or root of the function.
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\n" ); document.write( "\"-3-B=0\"
\n" ); document.write( "\"-3=B\"
\n" ); document.write( "The numerator is \"x-%28-3%29=x%2B3\".
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