document.write( "Question 864338: S^4-11s+28=0 \n" ); document.write( "

Algebra.Com's Answer #521078 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"u=s%5E2\"$
\n" ); document.write( " $\"u%5E2-11u%2B28=0\"$
\n" ); document.write( " $\"%28u-4%29%28u-7%29=0\"$
\n" ); document.write( "Two u solutions:
\n" ); document.write( " $\"u-4=0\"$
\n" ); document.write( " $\"u=4\"$
\n" ); document.write( " $\"s%5E2=4\"$
\n" ); document.write( " $\"s=0+%2B-+2\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"u-7=0\"$
\n" ); document.write( " $\"u=7\"$
\n" ); document.write( " $\"s%5E2=7\"$
\n" ); document.write( " $\"s=+0+%2B-+sqrt%287%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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