Find the value of the indicated sum.
A. (1 - 2)2 - (3 - 2)2 = -2
B. -(1 - 2)2 + (2 - 2)2 - (3 - 2)2 = -2
C. -(1 - 2)2 -2(2 - 2)2 -3(3 - 2)2 = -4
D. -(1 - 2)2 + (2 - 2)2 - (3 - 2)2 = 2
Answer: B
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