document.write( "Question 1059514: evaluate f(-x) to determine whether the given function is even, odd, or neither.
\n" ); document.write( "49) f(x) = x^3 - 5x\r
\n" ); document.write( "\n" ); document.write( "50)f(x)=2x^2+x^4
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Algebra.Com's Answer #674650 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
49) \"f%28-x%29=%28-x%29%5E3-5%28-x%29=-x%5E3%2B5x=-%28x%5E3-5x%29=-f%28x%29\"
\n" ); document.write( "So the function is odd.
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\n" ); document.write( "50) \"f%28-x%29=2%28-x%29%5E2%2B%28-x%29%5E4=2x%5E2%2Bx%5E4=f%28x%29\"
\n" ); document.write( "So the function is even.
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