document.write( "Question 78695This question is from textbook Algebra:Structure and Method
\n" ); document.write( ": Given that f(x)=3x+4 and g(x)=-x squared, find the following. 2f(5) \n" ); document.write( "
Algebra.Com's Answer #56431 by Septimus314(7)\"\" \"About 
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The g(x) doesn't matter here, since this can be solved without that part.\r
\n" ); document.write( "\n" ); document.write( "f(5) is simply plugging in 5 for the x, which is 3(5) + 4= 15 + 4= 19\r
\n" ); document.write( "\n" ); document.write( "But the question wants what 2f(5) would be, so we multiply by 2, which is 38.
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