Question

Which statement justifies that 3x^2 - 2x - 4 multiplied by 2x^2 + x - 3 obeys the closure property of multiplication?

The result 6x^4 - 2x^2 + 12 has a degree of 4.

The result 6x^4 - 2x^2 + 12 is a trinomial.

The result 6x^4 - x^3 - 19x^2 + 2x + 12 is a polynomial.

The result 6x^4 - x^3 - 19x^2 + 2x + 12 has a degree of 4.
closure property -The closure property is an attribute of a set with respect to a binary operation, not only a binary operation.
A set S is closed with respect to multiplication if, for any two elements, x and y, belonging to S, x*y also belongs to S.

Answer 1

@momosama @dan815

Answer 2

google clossure property of multiplication

Answer 3

i already did

Answer 4

@dan815

Answer 5

@crazymexican