Question

WILL GET BRAILIEST FOR CORRECT ANSWER

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 ]