To find a polynomial that has 3x² as a binomial factor, we can look for a polynomial that can be expressed in the form of (3x²)(Q(x)), where Q(x) is another polynomial.
For example, if we choose Q(x) = (x + 1), then we have:
3x²(x + 1) = 3x³ + 3x²
Hence, 3x³ + 3x² is a polynomial that has 3x² as a binomial factor. You can also create other polynomials by selecting different forms for Q(x).