Question

4. Сократите дробь Зx - 15 / x^2 - Зx - 10

Answer 1

$\displaystyle\bf\\\frac{3x-15}{x^{2} -3x-10} =\frac{3\cdot(x-5)}{(x-5)\cdot(x+2)} =\frac{3}{x+2}$