Question

нужна помощь!
1) 2/ x²-9 + 1/ x+3
2)2x/ x-4 - 5x-2/ x²-16

Answer 1

1)$\frac{2}{(x-3)*(x+3)}+ \frac{1}{x+3} = \frac{2+x-3}{(x-3)*(x+3)} = \frac{x-1}{(x-3)*(x+3)}$
$\left \{ {{x=1} \atop {x \neq 3, x \neq -3}} \right.$
2)$\frac{2x}{x-4} - \frac{5x-2}{(x+4)*(x-4)} = \frac{2 x^{2}+3x+2}{(x+4)*(x-4)}$