+"2ab" is an [algebraic](/wiki/Algebra) [term](/wiki/Term) signifying the product of two, 'a', and 'b'. It often appears within polynomial expansions, notably as the middle term in a squared binomial.
+## See also
+- [Polynomial](/wiki/Polynomial)
+- [Binomial](/wiki/Binomial)
+- [Identity](/wiki/Identity)
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