document.write( "Question 1207018: If x is equal to 2km what would 4x^2-1 equal
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #844812 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "if\r
\n" ); document.write( "\n" ); document.write( "\"x=2km\" \r
\n" ); document.write( "\n" ); document.write( "then\r
\n" ); document.write( "\n" ); document.write( "\"4x%5E2-1=4%282km%29%5E2-1=4%2A4km%5E2-1=16km%5E2-1\"
\n" ); document.write( "
\n" );