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Debora [2.8K]
3 years ago
14

Which expression is the simplest form of..

Mathematics
1 answer:
S_A_V [24]3 years ago
3 0

Answer:   Answer choice:  [A]:  " x⁻ ⁴ " .

_____________________________________________

Step-by-step explanation:

_____________________________________________

Given:

{x ^ ^( {\frac{-4}{7}) }^7 ;

 →  Simplify.

_____________________________________________

Note the following property of exponents:

_____________________________________________

 →   (xᵃ) ᵇ  =  x ⁽ ᵃ * ᵇ ⁾   ;    {a ≠ 0 ;  b ≠ 0 .} .

_____________________________________________

As such:

_____________________________________________

→    {x ^ ^( {\frac{-4}{7}) }^7  ;  

       =  x ^ ([(\frac{-4}{7}) * 7 ]  ;

_____________________________________________

Find:  [(\frac{-4}{7}) * 7 ] ;  Note:  " 7  = [tex]\frac{7}{1} " .

So:  Find:  " [(\frac{-4}{7} * [tex]\frac{7}{1} " ;

The 2 (two) "7 's " ;  cancel out to "1" ;  

      →   {since:  " 7 ÷ 7 = 1 " } ;

And we have:

  -4 * 1 = -4 .

So, we have:

       " x ⁻ ⁴ "  ; which is:  Answer choice:  [A]:  " x⁻ ⁴  " .

___________________________________________

Choice:  [C} —  is also an equivalent;  however, the question asks for the "simplest form" — which is:  Answer choice:  [A].

___________________________________________

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