Respuesta :

Answer:

Step-by-step explanation:

[tex]\frac{a-b}{\sqrt{a} -\sqrt{b}} =\sqrt{a} +\sqrt{b}\\or ~a-b=(\sqrt{a} +\sqrt{b})(\sqrt{a}  -\sqrt{b} )=(\sqrt{a} )^2-(\sqrt{b} )^2 =a-b[/tex]

Answer:=a-b

Step-by-step explanation: