c va rog urgent cu rezolvare dau coroana

(2/5) la puterea 2 totul la a doua =(2/5) la puterea 4
in paranteza aduci la acelasi numito
(3/5-5/5) totul la puterea =(-2 /5) la puterea 3
(2/5) la puterea 4 :(2/5 ) la puterea 3 :(1/2)=2/5 :1/2
2/5x 1/2=1/5