document.write( "Question 368839: solve\r
\n" ); document.write( "\n" ); document.write( "10x^4-9x^2+2=0 \n" ); document.write( "

Algebra.Com's Answer #262759 by fractalier(6550) $\"\"$ $\"About$

You can put this solution on YOUR website!
This is not a quadratic but it is in quadratic form...we can factor it as
\n" ); document.write( " $\"10x%5E4-9x%5E2%2B2=0\"$
\n" ); document.write( " $\"%285x%5E2+-+2%29%282x%5E2+-+1%29+=+0\"$
\n" ); document.write( "Now solve these individually
\n" ); document.write( " $\"5x%5E2+-+2+=+0\"$ leads to
\n" ); document.write( " $\"x+=+%2B-sqrt%282%2F5%29\"$ which can be rationalized
\n" ); document.write( "and
\n" ); document.write( " $\"2x%5E2+-+1+=+0\"$ leads to
\n" ); document.write( " $\"x+=+%2B-+sqrt%281%2F2%29\"$ which can also be rationalized \n" ); document.write( "

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