This math topic focuses on identifying polynomial sequences and their initial terms. It involves determining which polynomial formula could generate a given sequence based on its first three terms. Each problem provides a sequence and several polynomial options, where the task is to identify the correct polynomial that fits the sequence. Such exercises enhance skills in recognizing patterns and applying polynomial functions in a practical context. This is part of an advanced number patterns unit designed to challenge learners with more complex algebraic concepts.
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What sequence, starting with d = 1, are these the first 3 terms of?
9, 21, 39