Question 40
Quadratic EquationsFind the quadratic equation whose roots are c and −c.
- A.x2 + c2 = 0
- B.x2 − c2 = 0
- C.x2 + 2cx + c2 = 0
- D.x2 − 2cx + c2 = 0
Show the answer and explanation
Answer: B (x2 − c2 = 0)
Explanation
(x − c)(x + c) = 0 gives x2 − c2 = 0.