Question

If X is equal to a minus B and Y is equal to be minus C show that a minus C into A+ minus 2B is equal to X Square minus Y Square

Answer 1

Answer:

This question is proved above.

Step-by-step explanation:

All u have to do is to re-write (a-c) as (a-b)+(b-c) and (a+c-2b) as (a-b)-(b-c).