Error:URL using bad/illegal format or missing URL Note:afterexpansionofthisexpressionweendedupwithaperfectsquareinsideasquarerootsign.thiswassimpli Ed.inasimilarwaysurdsthathaveperfectsquaresasfactorsshouldbesimpli Edasfaraspossible.forexample - PowerPoint Presentations and PDF Documents