Which of the following shows that polynomials form a closed system under multiplication? Option #1: 3(2x+5)=6x+15 Option #2: 8x+7=5x+3x+1+6 Option #3: (2x2−4)(3y+6)=6x2y+12x2−12y−24 Option #4: 2x12⋅3=6x−−√ (1 point) Option #

Answer 1

The correct option that shows that polynomials form a closed system under multiplication is option #3: (2x^2−4)(3y+6)=6x^2y+12x^2−12y−24.

Answer 2

Which of the following shows that polynomials form a closed system under multiplication?

Option #1: 3(2x+5)=6x+15

Option #2: 8x+7=5x+3x+1+6

Option #3: (2x2−4)(3y+6)=6x2y+12x2−12y−24

Option #4: 2x12⋅3=6x−−√ (1 point) Option #

Answer 3

The correct option that shows that polynomials form a closed system under multiplication is option #3: (2x^2−4)(3y+6)=6x^2y+12x^2−12y−24.