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Help plzz I think it is 1 or 2 ..... By The square root property, if k is a real number and x^2=k, then what is x equal to? 1. √k 2. =| √k 3. -√k 4. k^2

Respuesta :

09pqr4sT

Answer:

[tex]\Large \boxed{2. \ x=\pm \sqrt{k}}[/tex]

Step-by-step explanation:

[tex]x^2 =k[/tex]

k is a real number.

We take the square root of both sides of the equation.

[tex]\sqrt{x^2 } =\pm \sqrt{k}[/tex]

Simplifying the equation.

[tex]x=\pm \sqrt{k}[/tex]

ujalakhan18

Answer:

x = ±√k

Step-by-step explanation:

If:

[tex]x^2 = k[/tex]

We'll take square root on both sides

=> [tex]\sqrt{x^2} = +/- \sqrt{k}[/tex]

=> x = ±√k

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