Question

a2 = 81

a = 9
a = ±9
a = 40.5
a = ±40.5

Answer 1

[AI-generated answer — Bot GPT 3.5]

The values of a that satisfy the equation a^2 = 81 are a = 9 and a = -9. Therefore, a can be either 9 or -9. The values of a as 40.5 and -40.5 are incorrect solutions.