Solve .

Answer and explanation

Correct answer: B. or

  1. Step 1: The numerator changes sign at and the denominator at . Step 2. The quotient is positive for and for , and is zero at . Step 3. At the expression is undefined, so is excluded. **Answer: or . Why not the others:** or : cannot be included: division by zero. : This is where the quotient is negative (apart from ). and : For the quotient is negative, so is wrong.

Practise more Algebra, logarithms and inequalities.

Free questions with an explanation for every one, and full timed Pancyprian Examinations (Cyprus) mock tests.

All Algebra, logarithms and inequalities questionsTake a mock test

More Algebra, logarithms and inequalities questions