Question

plz help!
what does the bar over -2a+2b mean?​

Answer 1

Answer:

bar means that first we have to solve the equation under bar

Answer 2

Given:

bar over -2a+2b

Solution:

1. first of all the question given in the above picture is the question of the VBODMAS.
2. The meaning of the VBODMAS is

•  V - Vniculum.
•  B - Bracket
•  O - Of
•  D - Division
•  M - Multiplication
•  A - Addition
•  S - Subtraction.

  3. As we can see that the VBODMAS is starting with the word V which means vniculum (bar over the numbers) so according to the series we will follow the operations as per the sequence of the words.

 4. So bar over -2a+2b means in the above question we have to solve this expression first.