SOLUTION: Evaluate: b to the power of 2 minus 2bc + c to the power of 2 if b = 4 and c = -1

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Question 43025: Evaluate: b to the power of 2 minus 2bc + c to the power of 2
if b = 4 and c = -1
Answer by gsmani_iyer(201) About Me  (Show Source):
You can put this solution on YOUR website!

b%5E2-2bc%2Bc%5E2 = %28b-c%29%5E2

Now replacing the values of 'b' and 'c' with 4 and -1 respectively, we get

= +%284+-+%28-1%29%29%5E2+

= +%284%2B1%29%5E2+ = 5%5E2+=+25 Answer.