document.write( "Question 371369: Factor completely: y^4-1 I am not sure how to factor this. Thank you. \n" ); document.write( "
Algebra.Com's Answer #264552 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi,
\n" ); document.write( "Factoring completely
\n" ); document.write( "y^4-1
\n" ); document.write( "(y^2 -1)(y^2 +1)
\n" ); document.write( "(y-1)(y+1)(y^2+ 1) \n" ); document.write( "
\n" );