SOLUTION: 14. Find the sum of b and c if the equation x^3+bx=c has solutions 2 and - 3

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Question 1142921: 14. Find the sum of b and c if the equation x^3+bx=c has solutions 2 and - 3
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
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x^3+bx=c has solutions 2 and - 3
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system%282%5E3%2B2b=c%2C-27-3b=c%29

system%288%2B2b=c%2C-27-3b=c%29

8%2B2b=-3b-27

5b=-27-8

5b=-35

highlight_green%28b=-7%29
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c=-14%2B8
highlight_green%28c=-6%29
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b%2Bc=-7-6
highlight%28b%2Bc=-13%29