mamdouh5524 mamdouh5524
  • 14-02-2018
  • Mathematics
contestada

What are the solutions to the equation x² = 625?
Select each correct answer.
A.−312.5

B.−25

C. 25

D. 312.5

Respuesta :

JonHenderson55
JonHenderson55 JonHenderson55
  • 14-02-2018
The correct answers: 
__________________________________
  [B]:  "-25" ; and:
__________________________________
  [C]:   "25"
___________________________________

x = ± 25
___________________________________
Note:
___________________________________

  " x
²  =  625 " ; Solve for "x" ;

→ √(x²) = √625 ; 

→  |x|  = |√625|

→  x=  ± 25
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