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binomial theorum and pascal's triangle

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(-p+q)^5 my answer was -p^5 + 5p^4q - 10p^3q^2 + 10p^2q^3 - 5pq^4 -q^5 but the answer for the question was listed with the last term +q^5 My question is why isn't it -q^5 for the last term?  Isn't ...

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help with multiplying a negative and variable with an exponent

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    n^2 - 6n + 11        2^2 - 6(2) + 11            4 - 12 + 11           3          1 - -----------------    -   --------------------   =   -   ---------------   =  -  ---  =   -  --    -n^2 +6n +...

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