Respuesta :

a = x^6
b=y
when dividing powers, you minus them

Step-by-step explanation:

Given

[tex]for \: a) \\ = \frac{ {x}^{8} }{ {x}^{2} } \\ = {x}^{8 - 2} \\ = {x}^{6} \\ now \: for \: b \:) \\ \frac{ {y}^{5} }{ {y}^{4} } \\ = {y}^{5 - 4} \\ = y[/tex]

Hope it will help :)