2(1+x+1−x)+1−x2=x432−x2−5" role="presentation" style="font-size: 13.696px; display: inline-table; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">1+x−−−−−(√+1−x−−−−−√)+1−x2−−−−−√=x432---−-x2−5