document.write( "Question 819190: Can u help me express the rational expression (y-1)(y-3)/(3-y)(1+y) \n" ); document.write( "
Algebra.Com's Answer #498110 by jsmallt9(3758)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "The \"trick\" with this one is recognizing that y-3 and 3-y are not the same... but they are opposites of each other! So if we factor out a -1 from one of them (not both!), we will have some factors to cancel:
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\n" ); document.write( "leaving...
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\n" ); document.write( "All that's left is to multiply out the numerator:
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