document.write( "Question 199969: Determine whether f(x)=3x^4-x^2 is even or odd. \n" ); document.write( "
Algebra.Com's Answer #150342 by rfer(16322)\"\" \"About 
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x^4 will always give you a positive number for an answer
\n" ); document.write( "work it out using a -2 or a +2 for x
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