document.write( "Question 64831: GIVEN f(x)=5x+7 AND g(x)=x^2+7, FIND (g o f)(x). \n" ); document.write( "

Algebra.Com's Answer #45324 by funmath(2933) $\"\"$ $\"About$

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GIVEN f(x)=5x+7 AND g(x)=x^2+7, FIND (g o f)(x).
\n" ); document.write( " $\"g%28f%28x%29%29=g%285x%2B7%29\"$ = $\"%285x%2B7%29%5E2%2B7\"$ Substitute the f function into the g function for x.
\n" ); document.write( " $\"%285x%2B7%29%285x%2B7%29%2B7\"$
\n" ); document.write( " $\"25x%5E2%2B35x%2B35x%2B49%2B7\"$
\n" ); document.write( " $\"25x%5E2%2B70x%2B56\"$
\n" ); document.write( "Happy Calculating!!!!
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