document.write( "Question 1067024: Find all zeros of f(x)=\"4x%5E4%2B36\" \n" ); document.write( "
Algebra.Com's Answer #683439 by ikleyn(53763)\"\" \"About 
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document.write( "4x^4 + 36 = 0\r\n" );
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document.write( "is equivalent to\r\n" );
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document.write( "x^4 = 9.\r\n" );
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document.write( "The roots are  \"sqrt%283%29\",  \"-sqrt%283%29\",  \"i%2Asqrt%283%29\"  and  \"-i%2Asqrt%283%29\",  where  i = \"sqrt%28-1%29\"  is the imaginary unit.\r\n" );
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