Question

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

±square root of 10
±square root of 20
±10
±40

Answer 1

±
`√(20)` is the answer

Explanation:

Answer 2

Answer with explanation:

It is given that

x²=20

`x=\pm (20)^{(1)/(2)`

Because , Square of
`√(20) \text{and} -√(20)` , both are equal to 20.

Option B: ±square root of 20