What are the roots of the equation x² = 9?

To find the roots of the equation (x^2 = 9), we need to isolate (x) by taking the square root of both sides. The square root of 9 can yield two possible values: (3) and (-3), since both (3^2) and ((-3)^2) equal 9. Thus, the solutions to the equation (x^2 = 9) are indeed (x = 3) and (x = -3).

This reasoned approach clarifies that the correct roots reflect the properties of square roots in real numbers, where each positive number has both a positive and a negative root. Hence, the response that identifies (x = 3) and (x = -3) correctly captures those solutions.