Answer:
2a² + 10a - 12
Step-by-step explanation:
To expand 2(a - 1)(a + 6), first expand the parenthesis
= 2(a² + 6a - a - 6)
= 2(a² + 5a - 6) ← distribute the terms in the parenthesis by the 2 outside
= 2a² + 10a - 12
