document.write( "Question 1062570: if log4 in base 3 = x and log9 in base 4 = y, find the value of xy. \n" ); document.write( "

Algebra.Com's Answer #677490 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+log%28+4%2C9+%29+=+y+\"$
\n" ); document.write( " $\"+log%28+3%2C4+%29+=+x+\"$
\n" ); document.write( "------------------
\n" ); document.write( "Writing the inverse:
\n" ); document.write( "(1) $\"+4%5Ey+=+9+\"$
\n" ); document.write( "(2) $\"+3%5Ex+=+4+\"$
\n" ); document.write( "-----------------
\n" ); document.write( "By substitution:
\n" ); document.write( " $\"+%28+3%5Ex+%29%5Ey+=+9+\"$
\n" ); document.write( " $\"+3%5E%28x%2Ay%29+=+9+\"$
\n" ); document.write( " $\"+x%2Ay+=+2+\"$
\n" ); document.write( "------------------
\n" ); document.write( "Maybe there is a way to prove the answer.
\n" ); document.write( "I don't know what that is.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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