Thực hiện phép tính: a) (–2). (–2). (–2); b) (–0,5)

a) (–2). (–2). (–2) = 4.(–2) = –8.

b) (–0,5).(–0,5) = −12.−12=−1.−12.2=14.

c) 12.12.12.12=1.1.1.12.2.2.2=116.