michalcastleberry
michalcastleberry michalcastleberry
  • 23-04-2021
  • Mathematics
contestada

solve for x
2 + x^2 = 18​

Respuesta :

Nunubear07 Nunubear07
  • 23-04-2021

Answer:

16

Step-by-step explanation:

Answer Link
kentlip18 kentlip18
  • 23-04-2021

Answer:

4 and -4

Step-by-step explanation:

To solve, just isolate x

2+x^2=18

subtract both sides of the equation by 2

x^2=16

find the square root of 16

(remember, no matter if a number is positive or negative, if it is squared, it automatically becomes positive)

to get:

x=4

and

x= -4

Answer Link

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