document.write( "Question 946270: Solve the equation (f compose g)(x) = 0. (Enter your answers as a comma-separated list.)
\n" ); document.write( "f(x) = x2 − x − 6, g(x) = 2x − 4\r
\n" ); document.write( "\n" ); document.write( "I plugged g(x) into f(x) and ended up with 2x^2-9x+3 and used the quadratic to find the solutions, but I wasn't getting the correct answer. \n" ); document.write( "
Algebra.Com's Answer #577276 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Solve the equation (f o g)(x) = 0. (Enter your answers as a comma-separated list.)
\n" ); document.write( " f(x) = x^2 − x − 6, g(x) = 2x − 4
\n" ); document.write( "I plugged g(x) into f(x) and ended up with 2x^2-9x+3 and used the quadratic to find the solutions, but I wasn't getting the correct answer.
\n" ); document.write( "-----------------
\n" ); document.write( "fog(x) = f[g(x)] = f[2x-4] = (2x-4)^2 - (2x-4) - 6
\n" ); document.write( "----
\n" ); document.write( "= 4x^2 -16x + 16 - 2x + 4 - 6
\n" ); document.write( "----
\n" ); document.write( "= 4x^2 -18x + 14
\n" ); document.write( "----
\n" ); document.write( "Solve:: 2x^2 - 9x + 7 = 0
\n" ); document.write( "---
\n" ); document.write( "(x-1)(2x-7) = 0
\n" ); document.write( "----
\n" ); document.write( "Solutions:: x = 1 or x = 7/2
\n" ); document.write( "---------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "--------------------
\n" ); document.write( " \n" ); document.write( "
\n" );