Question

Why it should be zero in these cases?
If I understood the answer, it will be marked as BRAINLIEST.
Wrong answers reported, and you will also loose the points you got when reported, so no wrong answers. ​

Answer 1

Answer:

So as you asked WHY SHOULD IT BE ZERO ...

so the reason is that we have to find a number that satifies the exact value of variable so that the equation become equal to zero.....

for satisfying any equation we equate is to a value which completely cancels out..or we equate it to zero..which means the whole and soul equation is entirely balanced

this is the reason why it should be zero

TRIED MY BEST TO EXPLAIN

HOPE IT HELPS