Answer:
A. parentheses can again be factorised.
B. see below
Step-by-step explanation:
A. in the parentheses there is still '2a' in common with all three terms.
B:
[tex]3ab(2a(a + 6 + 8a {}^{2}))[/tex]
It can no longer be factorised as it has no common factors, it's not a binomial square, it's not a quadratic trinomial etc.
