document.write( "Question 1059229: (f o g)(X)
\n" ); document.write( "f(x)=3x^2-8x
\n" ); document.write( "g(x)=2x\r
\n" ); document.write( "\n" ); document.write( "I know the answer I don't know how understand how.
\n" ); document.write( "I got this: 6x^2-16x I know it is not correct.
\n" ); document.write( "This is the answer: 12x^2-16x
\n" ); document.write( "I do not understand how that is the answer. \n" ); document.write( "

Algebra.Com's Answer #674370 by josgarithmetic(39620) $\"\"$ $\"About$

You can put this solution on YOUR website!
That first expression which should really be written $\"%28f+o+g%29%28x%29\"$ , tells that g is the input of f. This is function composition. The function $\"%28fog%29%28x%29\"$ means the function f is given the function g as its input. The notation can be written also as $\"f%28g%28x%29%29\"$ .\r
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\n" ); document.write( "\n" ); document.write( "NOW you understand and know what to do! Simplify the composition. \n" ); document.write( "

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