Final answer:
To solve the equation x^2 = 30, you take the square root of both sides which gives two solutions: √30 and -√30. Hence, the value of x is ±√30, making the correct answer C. ±√30.
Step-by-step explanation:
If the equation given is x^2 = 30, to find the value of x, we need to take the square root of both sides of the equation. The square root of a square recovers the original number, but since every positive number has two square roots (one positive and one negative), the solution will include both.
The square root of 30 is not a perfect square, so it stays ±30. Therefore, the value of x can be either √30 (which is approximately 5.477) or -√30. Thus, the correct choice is C. ±√30.