nvestigate the unknown values in the equation a2−5=59 . Which of the following statements is true?(1 point) Responses The variable a cannot be a negative value. The variable a cannot be a negative value. The variable a must be a positive value. The variable a must be a positive value. The variable a can be a positive or a negative value. The variable a can be a positive or a negative value. This equation has no solution.

The correct statement is: The variable a can be a positive or a negative value.

This is because when we solve the equation, we get:

a^2 - 5 = 59
a^2 = 64
a = ± 8

Therefore, the variable a can be either positive or negative.