Skip to content / Đến nội dung
ThichHocToan.com

IKMC 2021 - Grades 9-10 - Self-study Question 22

IKMC · IKMC 2021 - Grades 9-10 - Self-study

Question 22

The numbers a, b, c satisfy a+b+c=0 and abc=78. What is (a+b)(b+c)(c+a)?
  1. −156
  2. −78
  3. −39
  4. 78
  5. 156