Question 21
Algebraic ExpressionsThe expression (5x + 3)/(6x(x + 1)) will be undefined when x equals.
- A.{0, 1}
- B.{0, −1}
- C.{−3, −1}
- D.{−3, 0}
Show the answer and explanation
Answer: B ({0, −1})
Explanation
A fraction is undefined when its denominator is zero: 6x(x + 1) = 0 when x = 0 or x = −1.