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Basic operations, simple factors, factor Theorem, Remainder Theorem, Division of polynomials.

If a + b + c = 0, then the value of (a2/bc + b2/ca + c2/ab) is :

Option:
A. 1
B. 0
C. -1
D. 3
Answer: D . 3

Justification:

a + b + c = 0 → a3 + b3 + c3 = 3abc
.`.  a3/abc + b3/abc + c3/abc = 3  or  a2/bc + b2/ac + c2/ab = 3.

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