Which polynomials are prime? Check all that apply.

15x2 + 10x - 9x + 7

20x2 - 12x + 30x - 18

6x3 + 14x2 - 12x - 28

8x3 + 20x2 + 3x + 12

11x4 + 4x2 - 6x2 - 16

Here are the answers. Based on the given polynomials above, the ones that are considered prime are the following:

6x^3 + 14x^2 - 12x - 28

8x^3 + 20x^2 + 3x + 12

So there are only two answers which are the third and fourth options. The rest of the polynomials are not prime. Hope this answers your question. Have a great day!