Question

Which of the following statements is correct?
I. If x = 12, y = –2 and z = –10, then x³ + y³ + z³ = 360
II. If x + y = 48 and 4xy = 124, then 4x² +4y² = 4480

A Neither I nor II
B Only I
C Only II
D Both I and II
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