document.write( "Question 1119328: If f(x) = ∛x and g(x) = x^3 + 8, find (f • g)(3). \n" ); document.write( "

Algebra.Com's Answer #734824 by math_helper(2461) $\"\"$ $\"About$

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Piece-wise, plug in x=3 into g(x), plug that result into f(x):
\n" ); document.write( "g(3) = $\"+3%5E3%2B8+=+35+\"$
\n" ); document.write( "and f(35) = $\"+root%283%2C35%29+\"$
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\n" ); document.write( "\n" ); document.write( "Composing f o g(x) first, then plugging in x=3:
\n" ); document.write( " $\"+g%28x%29+=+x%5E3+%2B+8+\"$
\n" ); document.write( "and $\"+f%28x%5E3%2B8%29+=++root%283%2C+x%5E3%2B8%29+=+f%28g%28x%29%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"+f%28g%283%29%29+=+root%283%2C+3%5E3%2B8%29+=+root%283%2C35%29+\"$ \n" ); document.write( "

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