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

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

Question

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

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

nolegirl24 · Answer

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