Answer:
To determine what is the difference between "6 + A" and "6 x A", the logic of the proposed mathematical operations must be explained:
In "6 + A", the value A is added to the initial value 6. Thus, for example, if A were worth 10, to the initial value 6 10 units are added, with which the final value is 16.
In contrast, in "6 x A", the initial value 6 is multiplied by as many times as the value A indicates. Therefore, continuing with the value of A as 10, in this case 6 would be multiplied by 10 times, giving a final value of 60.
So firstly, square root 9a^2 and 49: 
Next, combine like terms, and your answer will be 
, or the third option.
its the first one because for example [-12] and 4
the absolute value of -12 is 12 so its greater
The answer will be/is 0,1
