If a base is negative, how will you know whether the answer is positive or negative before evaluating it?

Explained below.

Step-by-step explanation:

Assuming that the question is related to exponents.

Consider the expression:

Here,

a = base

b = exponent

Consider that the value of base is a negative term.

Then an even exponent will give a positive result.

And an odd exponent will give a negative result.

Consider the following values of b and suppose that a = -x.

For b = 4,

For b = 3,

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons