Question

tell me answer of this please
my test is there​

Answer 1

Answer:

Go ogle

The sum is a+b. The difference is a-b. Adding the sum to the difference is (a+b) + (a-b) which is a + b + a - b = 2a. So you see that half of this is one of the original numbers (a).

Answer 2

Answer:

jsgdjeghejegejejhebejecdnrvrhrhr