what is the expression of nth term in n2 - 2n
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In the sequence 2, 4, 6, 8, 10... ... Such sequences can be expressed in terms of the nth term of the sequence. In this case, the nth term = 2n. To find the 1st term, put n = 1 into the formula, to find the 4th term, replace the n's by 4's: 4th term = 2 × 4 = 8.
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