Tính: a) 1010 . (-104) b) (-2).(-2).(-2)
Giải thích
a) 1010 . (– 104) =– (1010 . 104) = – 1010 + 4 = – 1014.
b) (–2).(–2).(–2).(–2).(–2) + 25 = –(2 . 2 . 2 . 2 . 2) + 25 = – 25 + 25 = 0.
c) (–3).(–3).(–3).(–3)–34= 3 . 3 . 3 . 3 – 34 = 34 –34= 0.
a) 1010 . (– 104) =– (1010 . 104) = – 1010 + 4 = – 1014.
b) (–2).(–2).(–2).(–2).(–2) + 25 = –(2 . 2 . 2 . 2 . 2) + 25 = – 25 + 25 = 0.
c) (–3).(–3).(–3).(–3)–34= 3 . 3 . 3 . 3 – 34 = 34 –34= 0.