Question

x^2+10x+25    x^2-25

-------------- : ---------

x^2+5x             x^3

Answer 1

x^2+10x+25    x^2-25      (х + 5)^2  * x^3             х^2

-------------- : --------- = ------------------------ = ----------

x^2+5x             x^3        x(х+5) * (х+5)*(х-5)      x - 5