Answer:
Distributive Property
Explanation:
It states that:-
![\displaystyle \large{a(b + c) = ab + ac}](https://img.qammunity.org/2022/formulas/mathematics/college/g47uci200foch850nz239u4osn79thbw7m.png)
You can also common factor out a-term and it will become a(b+c).
For 8(6-1), use distributive property which yields:-
8(6)-8(1) = 48-8 = 40
The property is also associated with Common Factor too.
To say it simply, you multiply entire expression b+c with a-term and yields ab+ac.