document.write( "Question 881845: If f(x) = 2^x ,show that f(x+4) - f(x-2) = 63/4 * f(x) \n" ); document.write( "
Algebra.Com's Answer #532544 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29+=+2%5Ex\"
\n" ); document.write( "\"f%28x-2%29=2%5E%28x-2%29=2%5E%28-2%292%5Ex=2%5Ex%2F2%5E2=2%5Ex%2F4\"
\n" ); document.write( "\"f%28x%2B4%29=2%5E%28x%2B4%29=2%5E4%2A2%5Ex=16%2A2%5Ex\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"f%28x%2B4%29-f%28x-2%29=16%2A2%5Ex-2%5Ex%2F4\"
\n" ); document.write( "\"f%28x%2B4%29-f%28x-2%29=%2816-1%2F4%292%5Ex\"
\n" ); document.write( "\"f%28x%2B4%29-f%28x-2%29=%2864%2F4-1%2F4%292%5Ex\"
\n" ); document.write( "\"f%28x%2B4%29-f%28x-2%29=%2863%2F4%29%2A2%5Ex\"
\n" ); document.write( "\"f%28x%2B4%29-f%28x-2%29=%2863%2F4%29%2Af%28x%29\"
\n" ); document.write( "
\n" );