SOLUTION: Hi, I am not sure if this is the proper area for this question, so I do not know if this will get answered. Is it still possible for some help? Evaluate b2 – 2bc + c2 if b = 3 a

Algebra ->  Equations -> SOLUTION: Hi, I am not sure if this is the proper area for this question, so I do not know if this will get answered. Is it still possible for some help? Evaluate b2 – 2bc + c2 if b = 3 a      Log On


   

Question 23188: Hi,
I am not sure if this is the proper area for this question, so I do not know if this will get answered. Is it still possible for some help?
Evaluate b2 – 2bc + c2 if b = 3 and c = –2.
Thank you,
Sherri
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
You'll get it answered this week! I think there are 25 tutors who are OFF work this week looking for good questions, and NO students in school to be asking questions!!

b%5E2-+2bc+%2B+c%5E2%29+
3%5E2+-2%283%29%28-2%29+%2B+%28-2%29%5E2
9+%2B+12+%2B+4
25

No extra charge: Consider that b%5E2-+2bc+%2B+c%5E2%29+ actually factors into b-c%29%5E2.

If you substitute the values of b and c into this expression:
%283-%28-2%29%29%5E2
5%5E2
25
You get exactly the same answer!!!

R^2 at SCC