Evaluate the expression when =n−5 . n^2 9n 7

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Evaluate the expression when =n−5 . n^2+9n+7

Jun 10th, 2015

Thank you for the opportunity to help you with your question!

Your question seems to have an issue. Is it to evaluate n^2 + 9n +7 when n =  -5 or it was a continuation of a another question. Kindly clarify.


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Jun 10th, 2015

or I solve the  equation n−5 . n^2+9n+7


Jun 10th, 2015

Evaluate n^2 + 9n +7 when n =  -5

n^2 = -5 x -5 = 25, remember - x - = +

9n = 9 x -5 =  - 45, also keep in mind - x + = -

So combine: 25 + (-45) + 7

= 25 + 7 + (-45)

= 25 + 7 - 45

= 32 - 45

= -13

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Jun 10th, 2015

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Jun 10th, 2015

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