document.write( "Question 392631: for f(x) = x^2 + 2x, find f(-1). \n" ); document.write( "
Algebra.Com's Answer #278668 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
for f(x) = x^2 + 2x, find f(-1).
\n" ); document.write( "----
\n" ); document.write( "f(-1) = (-1)^2+2(-1)
\n" ); document.write( "= 1-2
\n" ); document.write( "= -1
\n" ); document.write( "==================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );