How do you solve sqrt(x-2)=4?

1 Answer
Jim G.
Jun 4, 2018

x=18

Explanation:

color(blue)"square both sides"

(sqrt(x-2))^2=4^2

x-2=16

"add 2 to both sides"

x=16+2=18

color(blue)"As a check"

sqrt(18-2)=sqrt16=4=" right side"

x=18" is the solution"

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