## Algebra and Trigonometry 10th Edition

Domain: all the real numbers except $x=3$ and $x=-2$
The denominator must be different from $0$: Use: $-x=2x-3x$ $x^2-x-6\ne0~~$ $x^2+2x-3x-6\ne0$ $x(x+2)-3(x+2)\ne0$ $(x-3)(x+2)\ne0$ $x-3\ne0$ $x\ne3$ or $x+2\ne0$ $x\ne-2$