F
flowlessgirl_10x


Tính hợp lí:
a, 1 1 1 1 13 7
4 _ . _ - 4 _ . _ + _ . _
3 6 3 2 3 15
b, 5 -9 -11
-3 _ . 2,75 . _ : _
9 (-2)^5 4
c, 1 -1
4 . ( -_ ) ^ 3 - 2 ( _ )^2 - 3: (-2)
2 2
a, 1 1 1 1 13 7
4 _ . _ - 4 _ . _ + _ . _
3 6 3 2 3 15
b, 5 -9 -11
-3 _ . 2,75 . _ : _
9 (-2)^5 4
c, 1 -1
4 . ( -_ ) ^ 3 - 2 ( _ )^2 - 3: (-2)
2 2