Question

tap to see and answer questions number 9​

Answer 1

Answer:

$(6ab - 3abc + 9abcd) \times \frac{ - 3}{1}ab \\ 6ab( - 3ab) - 3abc( - 3ab) + 9abcd( - 3ab) \\ - 18 {a}^{2} {b}^{2} + 9 {a}^{2} {b}^{2}c \: - 27 {a}^{2} {b}^{2}cd$