document.write( "Question 700270: x^4=1
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Algebra.Com's Answer #431755 by MathLover1(20855) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x%5E4=1\"$ ...=>... $\"x=root%284%2C1%29\"$ ...=>... $\"x=1\"$ or $\"x=-1\"$ ...real solutions and $\"x=i\"$ or $\"x=-i\"$ ...complex solutions\r
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\n" ); document.write( "\n" ); document.write( "if $\"x=1\"$ ...=>.. $\"1%5E4=1\"$ ....=>.. $\"1%2A1%2A1%2A1=1\"$ ...=>... $\"1=1\"$ ... $\"true\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"x=%28-1%29\"$ ...=>.. $\"%28-1%29%5E4=1\"$ ....=>.. $\"%28-1%29%2A%28-1%29%2A%28-1%29%2A%28-1%29=1\"$ ...=>... $\"1=1\"$ ... $\"true\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"x=i\"$ ...=>.. $\"i%5E4=1\"$ ....=>.. $\"i%2Ai%2Ai%2Ai=1\"$ ...=>... $\"i%5E2%2Ai%5E2=1\"$ .....=>... $\"%28-1%29%2A%28-1%29=1\"$ ...=>... $\"1=1\"$ ... $\"true\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"x=%28-i%29\"$ ...=>.. $\"%28-i%29%5E4=1\"$ ....=>.. $\"%28-i%29%2A%28-i%29%2A%28-i%29%2A%28-i%29=1\"$ ...=>... $\"%28-i%29%5E2%2A%28-i%29%5E2=1\"$ ......=>... $\"%28-1%29%2A%28-1%29=1\"$ ...=>... $\"1=1\"$ .. $\"true\"$ \r
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