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RiyaMoon
(2x+1)(3x2+2x+1)=
6x3 + 4x2 + 2x + 3x2 + 2x + 1 = 6x3 + 7x2 + 4x + 1. Basically, you should multiply each term in the first set of parentheses by each term in the second set of parentheses.
6x3+7x2+4x+1 you need to foil !