Solutions
Get detailed explanations to advanced GMAT questions.
Question
If x ≠ – 1, then 
is equal to
Option A:
-1
Option B:
1
Option C:
x
Option D:
1-x
Option E:
x-1
Difficulty Level
MediumSolution
Option D is the correct answer.
Option Analysis
We can use a2 – b 2 = (a+b)(a-b)
So in the given expression, only (1-x) is left in the numerator all the other will get cancel with denominator.
Related Questions
- If 175 billion French francs is equivalent to 35 billion United States dollars, which of the following…
- If the sum of the consecutive integers from –42 to n inclusive is 372, what is the value of n?
- A bookstore that sells used books sells each of its paperback books for a certain price and each of…
- A circular mat with diameter 20 inches is placed on a square tabletop, each of whose sides is…
- At a certain committee meeting only associate professors and assistant professors are present…