Find the sum to n terms of the series in...

Find the sum to n terms of the series in Questions 8 to 10 whose nth terms is given by :
`n^(2) + 2^(n)`

Verified by Experts

Given `sum(n^2+2^n)`
`=>sumn^2+sum2^n`
`=(n(n+1)(2n+1))/6+(1(2(2^n)-1))/(2-1)`
`=(n(n+1)(2n+1))/6+(2(2^n)-1)/(1)`

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