Answer:
D. A cant be a factor of the polynomial because the highest degree is 4. Since the polynomial cant be factored any more after (4x^2)*(3(x^2)-5x+1), D is the answer
D
Step-by-step explanation:
12[tex]x^{4}[/tex] - 20x³ + 4x² ← factor out 4x² from each term
= 4x²(3x² - 5x + 1) ← in factored form
with one factor 3x² - 5x + 1
