For which values of does have exactly one solution?

Answer and explanation

Correct answer: C. or , from

  1. Step 1: One solution means , where . Step 2. So , giving or . **Answer: or . Why not the others:** Both signs of work because is squared; 3 and 0 do not make zero.

Practise more Algebra, Functions, Geometry and Probability.

Free questions with an explanation for every one, and full timed Egzamin Maturalny (Matura Poland) mock tests.