Question

Which expression is equivalent to 0? (a)(-a) a +(-a) a/-a a - (-a)

Answer 1

A+(-a) equals zero because they cancel each other out .

(a)(-a) equals -a
a/-a equals -a
and
a-(-a) equals positive a

Answer 2

Answer:

a - a or (a +(-a))

Step-by-step explanation:

A negative plus a positive is always zero if they have the same variable.