Which of the following is the simplified form of x^2-9/x+3?

A: x–3, with the restriction x ≠ –3
B: x+3, with the restriction x ≠ –3
C: x–3, with the restriction x ≠ 3
D: x+3, with the restriction x ≠ 3

Question

Which of the following is the simplified form of x^2-9/x+3?

A: x–3, with the restriction x ≠ –3
B: x+3, with the restriction x ≠ –3
C: x–3, with the restriction x ≠ 3
D: x+3, with the restriction x ≠ 3

anonymous · Answer

$$\frac{(x-3)(x+3)}{x+3}$$

anonymous · Answer

I'm kind of lacking on my math skills right now, I'm so rusty could you possibly explain or walk me through it. I apologize for the inconvenience.

hero · Answer

First figure out which "restriction" would make the denominator equal zero. Then, cancel the factor of one to get the simplified form.

anonymous · Answer

I'm pretty sure that the restriction would have to be three seeing as you'll get zero for the numerator and zero divided by anything is zero, correct?

anonymous · Answer

I'm still looking for assistance!