Answered

1. What domain restrictions apply to this rational expression? show work
x2 +10x+9/
x2-9

Answer :

SQDANCEFANGO

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Answer:

  x ≠ -3, x ≠ 3

Step-by-step explanation:

As with any rational function, the denominator cannot be zero. Here that means we cannot have x such that ...

  x² -9 = 0

  (x -3)(x +3) = 0

  x = 3 or -3 . . . . . . . values not allowed in the domain

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