If $$\(x+y=a\)$$ and $$\(x y=b\)$$ then what is the value of $$\(x^{3}+y^{3}\)$$ in terms of a and b ?
A.
\(a^{3}+3 a b\)
B.
\(a^{3}-3 a b\)
C.
\(a^{3}+b^{3}\)
D.
\(a^{3}-b^{3}\)
Exam No：2018 First Round Grade 7 Year：2018 Question No：39
Answer:
B
Knowledge points:
G7 - Algebra - Exponent Properties (Factoring & Basic Rules)
Solution:
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