I think Quantity B will be positive, but answer says Quantity B will be greater , can some one help with correct answer?

I don’t think negative sign is included for the exponent, so quantity B will always be negative

Ahh, Yes you’re correct sir!

Let, me remove the answer!

Yes but x is a positive and odd integer so 2x will be always be an even integer, well that means -2 raised to even integer will always give a positive number

The number being raised to the even power is not -2, it’s just 2. and minus sign is for the whole result.

Like this -(2^{2x})