Respuesta :

puppies22
so you are finding the square root of 20. which is 4.72 rounded. and since it can be - or +
the answer is negative or positive 4.72
that is what x equals

Answer:

x= 4.47  and x=-4.47

Step-by-step explanation:

Given [tex]x^2=20[/tex]

To solve for x  we take square root on both sides

square root (x^2) is x

we use calculator to find square root (20)

[tex]\sqrt{20} = 4.47[/tex]

When we take square root we use +-

so we will get two values for x

x= +- 4.47

two x  values are x= 4.47  and x=-4.47