document.write( "Question 769922: How to solve the following logarithmic equations:
\n" ); document.write( "1.) x=log2(128) [with a base of 2]
\n" ); document.write( "2.) log2x=-4 [base of 2]
\n" ); document.write( "3.) log5(4x-3)=2 [base of 5]
\n" ); document.write( "PLEASE HELP! \n" ); document.write( "
Algebra.Com's Answer #469123 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
1) x = log2(128)
\n" ); document.write( " x = log2(2^7)
\n" ); document.write( " x = 7 log2 2
\n" ); document.write( " x = 7 (log2 2 = 1)
\n" ); document.write( "2) log2x = -4
\n" ); document.write( " x = 2^-4
\n" ); document.write( " x = 1/16
\n" ); document.write( "3) log5(4x - 3) = 2
\n" ); document.write( " 4x - 3 = 5^2
\n" ); document.write( " 4x - 3 = 25
\n" ); document.write( " 4x = 25 + 3
\n" ); document.write( " 4x = 28
\n" ); document.write( " x = 7
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "
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