OAU Post-UTME Mathematics 2014 Question 6

Question 6

Quadratic Equations

if α and β are the roots of equation cx2 + ax + b = 0, find αβ

  1. A.−b/a
  2. B.−a/c
  3. C.b/c
  4. D.c/a
Show the answer and explanation

Answer: C (b/c)

Explanation

Product of roots = constant term ÷ coefficient of x² = b/c.