document.write( "Question 163097: please help me solve the following logx with base 2 + log base2(x+5)-2log 3 base 2=2 \n" ); document.write( "
Algebra.Com's Answer #120204 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! using rules for logs __ log2{[x(x+5)]/3^2}=2 __ (x^2+5x)/9=4 __ x^2+5x=36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2+5x-36=0 __ factoring __ (x+9)(x-4)=0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x+9=0 __ x=-9 __ logs not defined for negative quantities\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x-4=0 __ x=4 \n" ); document.write( " |