The nth term if a sequence is an^2 + bn.
a) write down an expression in terms of a and b, for the 3rd term.
b) the 3rd term if this sequence is 21 and the 6th term is 96, find the value of a and the value of b.
(plz show your calculations)
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The nth term of a sequence is given by an2 + bn where a and b are integers. The 2nd term of the sequence is 4 The 4th term of the sequence is 16 (a) Find the 6th term of the sequence. GCSE 1 Edexcel Higher: June 2018 Paper 3, Q16 (4) (Total for Question 1 is 6 marks) Here are the first five terms of a
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