Step-by-step explanation:
1.
[tex]x ^ { 2 } +3x-2 \div x-1 \\ \frac{\left(x^{2}+3x-1\right)x}{x}-\frac{2}{x} \\ \frac{x^{3}+3x^{2}-x-2}{x} \\ [/tex]
2.
[tex]x ^ { 2 } -5x+6 \div x-2 \\ \frac{\left(x^{2}-5x-2\right)x}{x}+\frac{6}{x} \\ \frac{\left(x^{2}-5x-2\right)x+6}{x} \\ \frac{x^{3}-5x^{2}-2x+6}{x} \\ \frac{\left(x-1\right)\left(x-\left(2-\sqrt{10}\right)\right)\left(x-\left(\sqrt{10}+2\right)\right)}{x}[/tex]
