Answer:
The only difference is that for any positive value of 'x' g(X) and h(X) will be same and for any negative value of 'x' g(x) and h(x) will be different.
Explanation:
Given


|x| is modulus of x so modulus makes negative value as psoitive
for example


now we will solve for the above
For


and

Now for


and

so for positive value it is same and for negative value it is different