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I’m having issues with finding the restriction of the equation in the photo

I’m having issues with finding the restriction of the equation in the photo-example-1
User Starikoff
by
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1 Answer

16 votes
16 votes

Answer:

x = 9

Explanation:

Restricted value of the expression

  1. Simplify the equation.
  2. Set the denominator to 0.
  3. Solve and find the solution.
  4. The solution is the restricted value of the equation.


\sf ((x +7)(x+8))/((x -9(x + 6)) \ / \ ((x+8)(x - 2))/((x+ 6)(x - 2)) =((x +7)(x+8))/((x -9)*(x +6))*((x + 6)(x - 2))/((x +8 )(x - 2))


\sf =(x +7)/(x - 9)

x - 9 = 0

x = 9

If we plugin x = 9, then the denominator would become 0 and hence the expression will become undefined.

So, x = 9 is the restricted value of the expression.

User Jeremias Erbs
by
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