document.write( "Question 837984: Let g(x) = 2x and h(x) = \"+x%5E2+%2B+4+\".
\n" ); document.write( "Question: (g o h)(-2)\r
\n" ); document.write( "\n" ); document.write( "I will like to know if I am doing this question correctly because I do not know if I am plugging the -2 in the correct place.\r
\n" ); document.write( "\n" ); document.write( "g(h(-2))= 2x\r
\n" ); document.write( "\n" ); document.write( "I've been plugging -2 in for the h(x)= \"+x%5E2+%2B+4+\".
\n" ); document.write( "h(-2)= \"+%28-2%29%5E2+%2B+4+\"
\n" ); document.write( "4+4
\n" ); document.write( "8
\n" ); document.write( "Then plugging in the answer for the g(x) as the x value
\n" ); document.write( "g(8)=2x
\n" ); document.write( "2(8)
\n" ); document.write( "16
\n" ); document.write( "Am I doing this problem correctly or solving it the wrong way?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #504839 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
Form the composition, and then plug-in \"x=-2\"; maybe easier.
\n" ); document.write( "\"g%28x%29=2x\", and \"h%28x%29=x%5E2%2B4\".
\n" ); document.write( "-
\n" ); document.write( "\"g%28h%28x%29%29=2%28x%5E2%2B4%29=2x%5E2%2B8\"
\n" ); document.write( "Let x=-2.
\n" ); document.write( "\"g%28h%28-2%29%29=2%28-2%29%5E2%2B8\"
\n" ); document.write( "\"g%28h%28-2%29%29=8%2B8=16\"
\n" ); document.write( "-
\n" ); document.write( "I did not check your work too carefully, but you showed the same result.
\n" ); document.write( "
\n" );