Question

Решите плииз задание ниже

Answer 1

$frac{5x+15}{x^2-8x-33} = frac{5(x+3)}{(x-11)(x+3)}= frac{5}{x-11} \\ x^2-8x-33=0\ D=64+132=196; sqrt D=14\\ x_{1/2}= frac{8pm14}{2}\\ x_1=11; x_2=-3\\ boxed{x^2-8x-33=(x-11)(x+3)}$