SOLUTION: Evaluate b2 – 2bc + c2 if b = 3 and c = –2. im coming up with 17..am i right
Algebra
->
Expressions
-> SOLUTION: Evaluate b2 – 2bc + c2 if b = 3 and c = –2. im coming up with 17..am i right
Log On
Algebra: Evaluation of expressions, parentheses
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on expressions
Question 40051
:
Evaluate b2 – 2bc + c2 if b = 3 and c = –2.
im coming up with 17..am i right
Found 2 solutions by
fractalier, dyonak
:
Answer by
fractalier(6550)
(
Show Source
):
You can
put this solution on YOUR website!
Okay, from b^2 – 2bc + c^2, we substitute b = 3 and c = –2 to get
3^2 - 2(3)(-2) + (-2)^2 =
9 + 12 + 4 =
25
Answer by
dyonak(3)
(
Show Source
):
You can
put this solution on YOUR website!
Evaluate b2 – 2bc + c2 if b = 3 and c = –2.
Solution:
(3*2)-(2*3*-2)+(-2*2)
6-(2*-6)+(-4)
6-(-12)+(-4)
6+12-4
18-4 = 14
im coming up with 17..am i right