document.write( "Question 635502: Find all the roots : x^4-30x^+125=0 \n" ); document.write( "
\n" ); document.write( "Hi,\n" ); document.write( "Assume you meant:\n" ); document.write( "x^4-30x^2+125=0\n" ); document.write( "(x^2 - 25)(x^2-5) = 0\n" ); document.write( "x^2 = 25\n" ); document.write( "x = ± 5\n" ); document.write( "x^2 = 5\n" ); document.write( " x = ±