document.write( "Question 698148: If f(x)=3x^2+1 and g(x)=2x+2, then (fog^-1)(2) =\r
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\n" ); document.write( "\n" ); document.write( "...I don't understand how to find the answer.\r
\n" ); document.write( "\n" ); document.write( "I know that \"fog\" means f of g, but I don't know how to plug that in.
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Algebra.Com's Answer #430463 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
To get f of g :
\n" ); document.write( "take the info for g(x) (in this case 2x+2) and plug that into the equation for f(x).
\n" ); document.write( "So every place you see an 'x' in the f(x) equation, plug in '2x+2' (which is g(x)\r
\n" ); document.write( "\n" ); document.write( "\"f%28g%28x%29%29+=+3%28g%28x%29%29%5E2+%2B+1\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28g%28x%29%29+=+3%282x%2B2%29%5E2+%2B+1\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28g%28x%29%29+=+3%284x%5E2+%2B+8x+%2B+4%29+%2B+1\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28g%28x%29%29+=+12x%5E2+%2B+24x+%2B+12+%2B+1\"
\n" ); document.write( "\"f%28g%28x%29%29+=+12x%5E2+%2B+24x+%2B+13\"\r
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