(5^15.18+5^15.7) :5^17
=5^15.(18+7):5^17
=5^15.15:5^17
=5^17:5^15.15
=5^2.15
=25.15
=375
(5^15.18+5^15.7):5^17
=(5^15.(18+7)):5^17
=(5^15.25):5^17
=(5^15.5^2):5^17
=5^17:5^17
=1
Minh nghi la 375 la dung vi minh cung tinh ra nhu the
bằng đấy bạn ơi
mình chắc chăn luôn
[5^15.(18+7)]:5^17
=(5^15.25):5^17
=(5^15.5^2):5^17
=5^17:5^17
=1