SOLUTION: Evaluate 2c^3-5c+bc if b=4 and c=-1/2

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Question 822978: Evaluate 2c^3-5c+bc if b=4 and c=-1/2
Found 2 solutions by faceoff57, MathTherapy:
Answer by faceoff57(108) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate 2c^3-5c+bc if b=4 and c=-1/2
2(c^3) - 5c + bc
2(-1/2^3) - 5(-1/2) + bc
2(-1/8) - 5/2 + (4)(-1/2)
-1/4 - 5/2 - 2
-1/4 - 10/4 - 8/4
-19/4
-4 3/4

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Evaluate 2c^3-5c+bc if b=4 and c=-1/2 



2c%5E3+-+5c+%2B+bc

2%28-+1%2F2%29%5E3+-+5%28-+1%2F2%29+%2B+4%28-+1%2F2%29

2%28-+1%2F8%29+%2B+5%2F2+-+2

cross%282%29%28-+1%2F4cross%288%29%29+%2B+5%2F2+-+2

-+1%2F4+%2B+5%2F2+-+2

-+1%2F4+%2B+10%2F4+-+8%2F4 ------ Multiplying by LCD, 4

highlight_green%281%2F4%29

You can do the check!! 



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