document.write( "Question 195219: what is logx + log (x-0.21) = -2? \n" ); document.write( "

Algebra.Com's Answer #146424 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
what is logx + log (x-0.21) = -2?
\n" ); document.write( "log[x(x-0.21)) = -2
\n" ); document.write( "------------
\n" ); document.write( "x(x-0.21) = 10^-2
\n" ); document.write( "x^2 - 0.21x - 0.01 = 0
\n" ); document.write( "(x + 0.04)(x - 0.25) = 0
\n" ); document.write( "Positive solution:
\n" ); document.write( "x = 0.25
\n" ); document.write( "=================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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