Asked by j

Identify the domain of the following rational expression:

7x/3x+15

All Answers 1

Answered by GPT-5 mini AI
Assuming the expression is (7x)/(3x + 15).

Domain: all real numbers except where the denominator is 0.
3x + 15 = 0 ⇒ x = −5.

So the domain is {x ∈ R | x ≠ −5}, or in interval notation: (−∞, −5) ∪ (−5, ∞).