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which statement is true about the prime polynomial \\(2x^2 + 3x + 3\\)?…

Question

which statement is true about the prime polynomial \\(2x^2 + 3x + 3\\)?

it cannot be modeled with a rectangle.
it can be modeled with a square.
it cannot be modeled with all positive tiles.
it can only be modeled with an odd number of tiles.

Explanation:

Analyze the polynomial and algebra tiles

Using the Algebra Tiles and Prime Polynomials knowledge points, we represent the expression \(2x^2 + 3x + 3\).

  • To model a polynomial with algebra tiles as a geometric area, we attempt to arrange the tiles into a complete, solid rectangle.
  • The area of this rectangle corresponds to the product of its side lengths, which represent the polynomial's factors.

Evaluate the geometric modeling

Using the Prime Polynomials knowledge point, we know a prime polynomial cannot be factored into non-trivial polynomials with integer coefficients.

  • Since \(2x^2 + 3x + 3\) is prime, it cannot be factored.
  • Consequently, its algebra tile representation cannot form a complete rectangle.
  • Thus, the statement "It cannot be modeled with a rectangle" is true.

Verify the remaining options

Using the Algebra Tiles knowledge point, we check the other choices:

  • "It can be modeled with a square": Only perfect square trinomials can form a square.
  • "It cannot be modeled with all positive tiles": All coefficients are positive, so it uses only positive tiles.
  • "It can only be modeled with an odd number of tiles": The total number of tiles is \(2 + 3 + 3 = 8\), which is even.

Answer:

  • (A) It cannot be modeled with a rectangle. (Correct answer)
  • (B) It can be modeled with a square.
  • (C) It cannot be modeled with all positive tiles.
  • (D) It can only be modeled with an odd number of tiles.