document.write( "Question 672492: solve for x
\n" ); document.write( "4^x+6(4^-x)=5 \n" ); document.write( "

Algebra.Com's Answer #418065 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+4%5Ex+%2B+6%2A4%5E%28-x%29++=+5+\"$
\n" ); document.write( "You can say $\"+z+=+4%5Ex+\"$
\n" ); document.write( " $\"+z+%2B+6%2Fz+=+5+\"$
\n" ); document.write( " $\"+z%5E2+%2B+6+=+5z+\"$
\n" ); document.write( " $\"+z%5E2+-+5z+%2B+6+=+0+\"$
\n" ); document.write( " $\"+%28+z+-+2+%29%2A%28+z+-+3+%29+=+0+\"$
\n" ); document.write( " $\"+z+=+2+\"$
\n" ); document.write( " $\"+z+=+3+\"$
\n" ); document.write( "---------
\n" ); document.write( " $\"+4%5Ex+=+2+\"$
\n" ); document.write( " $\"+x+=+1%2F2+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+4%5Ex+=+3+\"$
\n" ); document.write( " $\"+x%2Alog%284%29+=+log%283%29+\"$
\n" ); document.write( " $\"+x+=+log%283%29+%2F+log%284%29+\"$
\n" ); document.write( " \n" ); document.write( "

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