SOLUTION: Evaluate b2 – 2bc + c2 if b = 3 and c = –2.

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Question 56010: Evaluate b2 – 2bc + c2 if b = 3 and c = –2.

Answer by tutorcecilia(2152) About Me  (Show Source):
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b^2 – 2bc + c^2 [Substitute 3 for b and substitute -2 for c]
(3)^2 – 2(3)(-2) + (-2)^2
9-6(-2)+4
9+12+4
21+4
25