document.write( "Question 758874: why is it necessary to check the solutions of a logarithmic equation. \n" ); document.write( "
Algebra.Com's Answer #461727 by lwsshak3(11628)\"\" \"About 
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why is it necessary to check the solutions of a logarithmic equation.
\n" ); document.write( "Because arguments of logarithms>0, that is, if the solution makes any of the arguments≤0, the solution is rejected. Example: log(x-5), x>5
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