SOLUTION: x^4+3x^3-x^2+6 for x=-3

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Question 365710: x^4+3x^3-x^2+6 for x=-3
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E4%2B3x%5E3-x%5E2%2B6 Start with the given expression.


%28-3%29%5E4%2B3%28-3%29%5E3-%28-3%29%5E2%2B6 Plug in x=-3.


81%2B3%28-3%29%5E3-%28-3%29%5E2%2B6 Raise -3 to the 4th power to get 81.


81%2B3%28-27%29-%28-3%29%5E2%2B6 Cube -3 to get -27.


81%2B3%28-27%29-9%2B6 Square -3 to get 9.


81-81-9%2B6 Multiply 3 and -27 to get -81.


-3 Combine like terms.


So x%5E4%2B3x%5E3-x%5E2%2B6=-3 when x=-3


If you need more help, email me at jim_thompson5910@hotmail.com

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Jim