document.write( "Question 1119660: a) Find x:
\n" ); document.write( "x^5+ x^4+ x^3+ x^2+1=0
\n" ); document.write( "I have factored it : (x^2+ x+1)(x+1)(x^2-x+1)
\n" ); document.write( "b)Factoring:
\n" ); document.write( "2x^2y^2+2y^2z^2+2x^2z^2-x^4-y^4-z^4 \n" ); document.write( "

Algebra.Com's Answer #735270 by ikleyn(52852) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "a)  Regarding the equation     //   !!  as it is written in your post  !!\r\n" );
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document.write( "    x^5+ x^4+ x^3+ x^2+1=0,\r\n" );
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document.write( "    your factoring is INCORRECT, since it implies that x= -1 is the root,\r\n" );
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document.write( "    while easy inspection shows it is not.\r\n" );
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document.write( "    The same arguments disprove the solution by the other tutor.\r\n" );
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document.write( "b)  \r\n" );
document.write( "~~~~~~~~~~~~~~~~~~~~~~\r\n" );
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document.write( "    Regarding this factoring, see this video-lecture \r\n" );
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document.write( "    https://www.youtube.com/watch?v=SWMPwVlF07g\r\n" );
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