document.write( "Question 1029197: Log2 (x+20) - log2 (x+2) = log2 x \n" ); document.write( "
Algebra.Com's Answer #644261 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Log2 (x+20) - log2 (x+2) = log2 (x)
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\n" ); document.write( "log2[(x+20)/(x+2)] = log2(x)
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\n" ); document.write( "Take the anti-log of both sides to get:
\n" ); document.write( "(x+20)/(x+2) = x
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\n" ); document.write( "x^2 + 2x = x+20
\n" ); document.write( "x^2 + x - 20 = 0
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\n" ); document.write( "(x+5)(x-4) = 0o
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\n" ); document.write( "Acceptable solution:
\n" ); document.write( "x = 4
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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