lesspo lesspo
  • 13-07-2017
  • Mathematics
contestada

If the value of 2x3 is 2, then what is the value of x?

Respuesta :

danielcbailey danielcbailey
  • 13-07-2017
If the expression is 2*x*3, x must be 1/3 in order to cancel out the 3 which would leave the 2.
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JonHenderson55
JonHenderson55 JonHenderson55
  • 13-07-2017
x = 1, -1 .
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  Given:  2x³ = 2 ;  Divide each side of the equation by "2" ;

               [2x³] / 2 = 2 / 2 ; 

    to get:   x³ = 1 ;  

Now, take the "cube root" of EACH SIDE of the equation; to isolate "x" on ONE SIDE of the equation; and to solve for "x" ;

   ∛(x³)  = ∛1  ;

      x = 1, -1 .
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