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The nth term of a sequence is an^2+bn write down an expression in terms of a and b for the 3rd term​

The nth term of a sequence is an^2+bn write down an expression in terms of a and b for the 3rd term​
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The nth term of a sequence is an^2+bn write down an expression in terms of a and b for the 3rd term​

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User Kurtis Streutker
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8.3k points

1 Answer

2 votes

Answer:

9a + 3b

Explanation:

just need to substitute n = 3 so we get

a•3² + b•3 = 9a + 3b

answered
User Vishal Jagtap
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