document.write( "Question 579719: How do you know that two is not the only solution for x^4=16? \n" ); document.write( "
Algebra.Com's Answer #371055 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
Because -2 works as well (so do 2i and -2i). \n" ); document.write( "
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