| b) | Calcule de deux manières différentes. |
|
(3 . 5)2 |
= 152 |
(3
. 5)2 |
=
32 . 52 |
=
225 |
=
9 . 25 |
||
=
225 |
|||
|
(2 . 5)3 |
=
103 |
(2
. 5)3 |
=
23 . 53 |
=
1000 |
=
8 . 125 |
||
=
1000 |
|||
|
(7 . 10)2 |
= 702 |
(7 . 10)2 |
= 72 . 102 |
=
4900 |
=
49 . 100 |
||
=
4900 |
|||
|
(5 . 10)3 |
= 503 |
(5 . 10)3 |
= 53 . 103 |
=
125 000 |
=
125 . 1000 |
||
=
125 000 |