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

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Question 127336: Evaluate b2 – 2bc + c2 if b = 3 and c = –2.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
b%5E2+-+2bc+%2B+c%5E2 Start with the given expression


%283%29%5E2+-+2%283%29%28-2%29+%2B+%28-2%29%5E2 Plug in b=3 and c=-2


9+-+2%283%29%28-2%29+%2B+4 Square 3 to get 9. Square -2 to get 4


9+%2B12+%2B+4 Multiply


25 Add


So b%5E2+-+2bc+%2B+c%5E2=25 when b=3 and c=-2