document.write( "Question 895015: Find f(k) when f(x)=3x^2 + 4x + 5
\n" ); document.write( "I dont understand what to do with the f(k)? Please explain to me how to solve this problem.
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Algebra.Com's Answer #542505 by reviewermath(1029)\"\" \"About 
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Q:
\n" ); document.write( "Find f(k) when f(x)=3x^2 + 4x + 5
\n" ); document.write( "A:
\n" ); document.write( "Simply replace x by k.
\n" ); document.write( "f(k)=3k^2 + 4k + 5
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