Respuesta :

Sidharth999
Answer: 49

Step-by-Step Explanation:

As we can see, we have been given a negative exponent for “x”. Hence we have to take the reciprocal which would be x squared.


Therefore, x = 7
= x^2 = 7 * 7
= 49

Answer:

49

Step-by-step explanation:

Simplify the expression such that the variable has a positive exponent.

  • [tex]\frac{1}{x^{-2} }[/tex]
  • x² [negative exponent is taken to the other side]

Substitute x = 7.

  • (7)²
  • 49