Giải phương trình
Giải phương trình:
a) $\frac{x^{2}}{x^{2}+2x+2}$ + $\frac{x^{2}}{x^{2}-2x+2}$ + $\frac{4(x^{2}-5)}{x^{2}+4}$ = $\frac{322}{65}$
b) $\frac{4}{2x^{3}+3x^{2}-8x-12}$ - $\frac{1}{x^{2}-4}$ - $\frac{4}{2x^{2}+7x+6}$ + $\frac{1}{2x+3}$ = 0
c) $\frac{14}{20-6x-2x^{2}}$ + $\frac{x^{2}+4x}{x^{2}+5x}$ - $\frac{x+3}{2-x}$ + 3 = 0
d) $\frac{x+4}{x^{2}-3x+2}$ + $\frac{x+1}{x^{2}-4x+3}$ = $\frac{2x+5}{x^{2}-4x+3}$
e) $\frac{x^{2}+2x+2}{x+1}$ + $\frac{x^{2}+8x+20}{x+4}$ = $\frac{x^{2}+4x+6}{x+2}$ + $\frac{x^{2}+6x+12}{x+3}$
a) $\frac{x^{2}}{x^{2}+2x+2}$ + $\frac{x^{2}}{x^{2}-2x+2}$ + $\frac{4(x^{2}-5)}{x^{2}+4}$ = $\frac{322}{65}$
b) $\frac{4}{2x^{3}+3x^{2}-8x-12}$ - $\frac{1}{x^{2}-4}$ - $\frac{4}{2x^{2}+7x+6}$ + $\frac{1}{2x+3}$ = 0
c) $\frac{14}{20-6x-2x^{2}}$ + $\frac{x^{2}+4x}{x^{2}+5x}$ - $\frac{x+3}{2-x}$ + 3 = 0
d) $\frac{x+4}{x^{2}-3x+2}$ + $\frac{x+1}{x^{2}-4x+3}$ = $\frac{2x+5}{x^{2}-4x+3}$
e) $\frac{x^{2}+2x+2}{x+1}$ + $\frac{x^{2}+8x+20}{x+4}$ = $\frac{x^{2}+4x+6}{x+2}$ + $\frac{x^{2}+6x+12}{x+3}$