Question

please answer fast I will mark brilliant​

Answer 1

Answer:

$- {3a}^{2} \times 4 {a}^{3}$

$= { - 12}^{2 + 3}$

$= { - 12}^{5}$

Answer 2

Step-by-step explanation:

$- 3a {}^{2} \times 4a {}^{3} \\ - 12a {}^{5}$