Risolvi A=a-2/a^2ba^2-a^2/aleft(a-2right)-a-b

$$A = \frac{ a-2 }{ { a }^{ 2 } b } \frac{ { a }^{ 2 } - { a }^{ 2 } }{ a \left( a-2 \right) -a-b }$$

Trova a (soluzione complessa)

$$a\in \mathrm{C}\setminus 0,\frac{\sqrt{4b+9}+3}{2},\frac{-\sqrt{4b+9}+3}{2}$$

$$A=0\text{ and }b\neq 0\text{ and }a\neq 0\text{ and }b\neq a\left(a-3\right)$$

Trova A

$$A=0$$

$$a\neq 0\text{ and }b\neq 0\text{ and }b\neq a\left(a-3\right)$$

Trova a

$$\left\{\begin{matrix}a\in \mathrm{R}\setminus 0,\frac{\sqrt{4b+9}+3}{2},\frac{-\sqrt{4b+9}+3}{2}\text{, }&b\geq -\frac{9}{4}\text{ and }A=0\text{ and }b\neq 0\text{ and }a\neq 0\text{ and }b\neq a\left(a-3\right)\\a\in \mathrm{R}\setminus \frac{\sqrt{4b+9}+3}{2}\text{, }b\geq -\frac{9}{4},\frac{-\sqrt{4b+9}+3}{2}\text{, }b\geq -\frac{9}{4},0\text{, }&A=0\text{ and }a\neq 0\text{ and }b\neq a\left(a-3\right)\text{ and }b<-\frac{9}{4}\end{matrix}\right,$$