which polynomial is prime? x3 + 3x2 – 2x – 6 x3 – 2x2 + 3x – 6 4x4 + 4x3 – 2x – 2 2x4 + x3 – x + 2; factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression?; 20x2 – 12x + 30x – 18; which polynomials are prime check all of the boxes that apply; which polynomials are prime check all that apply. 2x2+ 7x + 1; which polynomials are prime check all that apply x^2+9; describe the first step when factoring any polynomial. why is this the first step? explain.; complete the steps to factor the polynomial by grouping p x x^3 + 5x^2 x+5