Question

14. Simplificați fracțiile algebrice:
$a) \: \frac{x {}^{2} - 4}{x {}^{2} + 2x { }^{2} + 2x + 4 }$
$c) \: \: \: x \frac{x {}^{2} - 9}{x {}^{3} - 3x {}^{2} + 3x - 9 }$
va rog urgent
DAU COROANA ❤️​

Answer 1

a) [(x-2)(x+2)]/[(x^2(x+2) + 2(x+2)] = [(x-2)(x+2)]/[(x+2)(x^2 + 2)] = (x-2)/(x^2 + 2)

b) [(x-3)(x+3)]/[x^2(x-3) + 3(x-3)] = [(x-3)(x+3)]/[(x-3)(x^2 + 3)] = (x+3)/(x^2 + 3)