document.write( "Question 450913: i'm confused on trying to find out what this equals.. the problem is
\n" ); document.write( "4^x-2^x-12=0
\n" ); document.write( "

Algebra.Com's Answer #310197 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
\"4%5Ex+-+2%5Ex+-+12+=+0\"
\n" ); document.write( "<==> \"2%5E%282x%29+-+2%5Ex+-+12+=+0\"
\n" ); document.write( "<==> \"%282%5Ex+-+4%29%282%5Ex+%2B+3%29+=+0\"
\n" ); document.write( "<==> \"2%5Ex+-+4+=+0\", or \"2%5Ex+%2B+3+=+0\"\r
\n" ); document.write( "\n" ); document.write( "The second equation has no real solutions, and so, \r
\n" ); document.write( "\n" ); document.write( "\"2%5Ex+-+4+=+0\", or \"2%5Ex+=+4\", or x = 2.
\n" ); document.write( "
\n" );