document.write( "Question 79262: f(x) = 5x + 21/x; f(x) = -38 \n" ); document.write( "
Algebra.Com's Answer #56911 by checkley75(3666)\"\" \"About 
You can put this solution on YOUR website!
f(x)=5x+21/x
\n" ); document.write( "-38=5x+21/x
\n" ); document.write( "-38=(5x^2+21)/x cross multiply
\n" ); document.write( "-38x=5x^2+21
\n" ); document.write( "5x^2+38x+21=0
\n" ); document.write( "(5x+3)(x+7=0
\n" ); document.write( "5x+3=0
\n" ); document.write( "5x=-3
\n" ); document.write( "x=-3/5 amswer.
\n" ); document.write( "x+7=0
\n" ); document.write( "x=-7 answer.
\n" ); document.write( "answers are (-3/5,-7).
\n" ); document.write( "sorry I misread the problem.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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