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03-08-2020
Mathematics

contestada

Solve the equation using square roots x^2+20=4

Respuesta :

03-08-2020

Answer:

Step-by-step explanation:

x^2+20=4 first isolate the variable by subtracting 20 on both sides.

x^2=-16 again isolate the variable but this time you square root both sides.

[tex]\sqrt{x}^2[/tex]=[tex]\sqrt{-16[/tex] then simplify

x= ±4

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