sophiaspittal sophiaspittal
  • 01-04-2018
  • Mathematics
contestada

(x - 5) 2 = 81 Which of the following expressions represents the solutions to the given equation?

Respuesta :

jndawg04 jndawg04
  • 01-04-2018
So you have: (x - 5)^2 = 81

Take the square root of both sides.

x-5 = +/-9
x=5 +/-9
x=14,-4


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eudora eudora
  • 05-06-2019

Answer:

solution of the given expression is ( 5 ±√81 ).

Step-by-step explanation:  

( x - 5 )² = 81 is the expression and we have to get the solutions.

( x - 5 )² = 81

x - 5 = ±√81 ( if x² = 9 then x = ± 1 is the solution )

x = 5 ± √81

Therefore, solution of the given expression is ( 5 ±√81 ).

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