Mathematics, 06.05.2020 17:04 YesBoi

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

A) The result 2x4 − 5x3 − 10x2 + 7x + 6 is a polynomial.
B) The result 2x4 − 5x3 − 10x2 + 7x + 6 has a degree of 4.
C) The result 2x4 − 3x2 + 6 is a trinomial.
D) The result 2x4 − 3x2 + 6 has a degree of 4.

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