Respuesta :

wegnerkolmp2741o

Answer:

±sqrt(y-4) =  x

Step-by-step explanation:

y = x^2 + 4

Subtract 4 from each side

y-4 = x^2+4-4

y-4 = x^2

Now take the square root of each side

±sqrt(y-4) =  sqrt( x^2)

±sqrt(y-4) =  x

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