document.write( "Question 1021876: `f(x)=x^4-ax^2\r
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\n" ); document.write( "\n" ); document.write( "When a = 2, there is more than one critical point.\r
\n" ); document.write( "\n" ); document.write( "Considering the x-coordinates of the critical points, what is the value of the greatest x-coordinate, giving your answer to 2 decimal places?''.
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Algebra.Com's Answer #637619 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29=x%5E4-2x%5E2\"
\n" ); document.write( "\"df%2Fdx=4x%5E3-4x\"
\n" ); document.write( "\"df%2Fdx=4x%2A%28x%5E2-1%29\"
\n" ); document.write( "\"df%2Fdx=4x%28x-1%29%28x%2B1%29\"
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\n" ); document.write( "\"x-1=0\"
\n" ); document.write( "\"x%5Bc%5D=1\"
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