Question

WILL GET BRAILIEST FOR CORRECT ANSWER
if x^2=20, what is the value of x?

a. +_ sqrt 10
b. +_sqrt 20
c. +_ 10
d. +_40

(the +_ is that weird symbol that has the plus sign on top of the underscore, i forget what its called)​

Answer 1

Answer:

x = ± $\sqrt{20}$

Step-by-step explanation:

Given

x² = 20 ( take the square root of both sides )

x = ± $\sqrt{20}$

which can be simplified to

x = ± 2$\sqrt{5}$

[ ± means plus or minus ]