Answers

1. Answer:

   x^4 + 4x^3 + 6x^2 + 7x +2

   Step-by-step explanation:

   x^2 x x^2 = x^4

   x^2 x x = x^3

   x^2 x 2 = 2x^2

   3x x x^2 = 3x^3

   3x x x = 3x^2

   3x x 2 = 6x

   1 x x^2 = x^2

   1 x x = x

   1 x 2= 2

   x^4 + 4x^3 + 6x^2 + 7x +2

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