Final answer:
The relationship between the zero and the value of the power of the exponent when a equals 1, an even number, or an odd number can be expressed through a conjecture with justification.
Step-by-step explanation:
The conjecture about the relationship between the zero and the value of the power of the exponent when a equals 1, an even number, or an odd number is:
When a = 1, the zero of the equation occurs at x = -2.
For even values of a, the zero occurs at x = -2 + 2k, where k is an integer.
For odd values of a, the zero occurs at x = -2 - 2k, where k is an integer.
The justification for this conjecture is based on analyzing the equation and observing the patterns of the zeros for different values of a.