Question

If x2 = 20, what is the value of x?

Answer 1

Answer with explanation:

It is given that

  x²=20

$x=\pm (20)^{\frac{1}{2}$

Because , Square of $\sqrt{20} \text{and} -\sqrt{20}$ , both are equal to 20.

Option B: ±square root of 20

Answer 2

The correct answer is the second option: plus or minus square root of 20
Hope this helped :)