Question 214773
Since "(x-1)^1/2-x(1/2)(x-1)^-1/2/x-1" is very ambiguous, you will need to repost your question using parentheses:<ul><li>Around each numerator</li><li>Around each denominator</li><li>Around each exponent</li><li>Around each <i>expression</i> to which an exponent applies. (Note that "expression" is italicized. If an exponent applies to just a variable, you do not need to put parentheses around the variable.)</li></ul>
Without these parenthese there are just too many ways to interpret "(x-1)^1/2-x(1/2)(x-1)^-1/2/x-1". Taken literally, "(x-1)^1/2-x(1/2)(x-1)^-1/2/x-1" means:
{{{(x-1)^1/2-x(1/2)(x-1)^-1/2/x-1}}} which is probably not what you meant.