document.write( "Question 13296: x^4 -3x^2-4=0 \n" ); document.write( "

Algebra.Com's Answer #6643 by rahman(247) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x%5E4+-3x%5E2-4=0\"$
\n" ); document.write( " $\"%28x%5E2+-4%29%28x%5E2%2B1%29=0\"$
\n" ); document.write( " $\"%28x%2B2%29%28x-2%29%28x%5E2%2B1%29=0\"$
\n" ); document.write( " $\"%28x%2B2%29=0\"$ or $\"%28x-2%29=0\"$ or $\"%28x%5E2%2B1%29=0\"$
\n" ); document.write( "x=-2 or x = 2 or x=i or x = -i
\n" ); document.write( "Solution for this problem is {-2,-i,i,2}\r
\n" ); document.write( "\n" ); document.write( "OK\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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