A, -1, -1 is your answer
6(-1) - 2(-1) = -4
-6 + 2 = -4
Answer:
B. 
Step-by-step explanation:
Given:

Hence Solving the given expression we get;
By Law of Indices which states;

Hence we get;

Also We know that

So,

Answer:
64
Step-by-step explanation:
Answer:
3x +2
Step-by-step explanation:
(x - 1) + (2x + 3)
Combine like terms
x+2x -1 +3
3x +2