Question

Me pueden responder esto por favor ​

Answer 1

Respuesta:

a. $\frac{x^2+6x+9}{x^2}\left(\frac{x}{x+4}+\frac{x+3}{x+4}\right)=\frac{\left(x^2+6x+9\right)\left(2x+3\right)}{x^2\left(x+4\right)}$

b.  $\frac{x+5}{x^2-4}\left(\frac{5}{x-1}\cdot \frac{x-1}{25x-50}\right)=\frac{x+5}{5\left(x^2-4\right)\left(x-2\right)}$

c.  $\left(\frac{x^2-16}{x^2-4}\cdot \frac{x^2+4x+4}{2x-8}\right)\div \frac{x^2+8x+16}{x-2}=\frac{x+2}{2\left(x+4\right)}$

d.  $\left[\frac{x^3-y^3}{\left(x-y\right)^3}\cdot \frac{x-y}{x^2+xy+y^2}\right]+\left[\frac{x^3+y^3}{x-y}\cdot \frac{x^2-2xy+y^2}{x+y}\right]=\frac{1+x^4-3x^3y+4x^2y^2-3xy^3+y^4}{x-y}$

listo