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Simplify the following summations to the form an³ + bn² + cn. Give values for a, b and c for each question.
1. Σ(i=1 to n) of 5
2. Σ(i=1 to n) of (6i + 7)
3. Σ(i=1 to n) of (18i^2 + 4i + 1)
4. Σ(i=1 to n) Σ=(j=1 to i) of (12j + 2)​

Simplify the following summations to the form an bn cn Give values for a b and c for each question1 Σi1 to n of 5 2 Σi1 to n of 6i 7 3 Σi1 to n of 18i2 4i 1 4 Σ class=


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