Answer:
Step-by-step explanation:
1. Do what is inside the parantheses


2. Simplify both terms

3. Solve

Answer:
i think they are different ways to solve a problem
Step-by-step explanation:
they come with different abbreviations
Wouldn’t be a,or d. I would honestly say B..
Answer:
0
Step-by-step explanation:
![\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] = ad-bc](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%5D%20%3D%20ad-bc)
0(4)-4(0) = 0