# Which statement justifies that 3x2 − x − 5 multiplied by 2x2 − x − 3 obeys the closure property of multiplication?

The result 6x4 + x2 + 15 has a degree of 4.

The result 6x4 + x2 + 15 is a trinomial.

The result 6x4 − 5x3 − 18x2 + 8x + 15 is a polynomial.

The result 6x4 − 5x3 − 18x2 + 8x + 15 has a degree of 4.

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vlnakonechnyyThe answer is C) The result 6x^4 - 5x^3 - 18x^2 + 8x + 15 is a polynomial.