Réponse :
Explications étape par étape
Bonjour
a | 2a | a^2 | 2a^2 | (2a)^2
2 |...... | ...... | ...........| ..........
-3|...... | ...... | .......... | ..........
....| 4/3|....... | .......... | .........
2a = 2 x 2 = 4
a^2 = 2^2 = 4
2a^2 = 2 x 4 = 8
(2a)^2 = 4^2 = 16
2a = 2 x (-3) = (-6)
a^2 = (-3)^2 = 9
2a^2 = 2 x 9 = 18
(2a)^2 = (-6)^2 = 36
2a = 4/3
a = 4/(3 x 2) = 2/3
a^2 = (2/3)^2 = 4/9
2a^2 = 2 x 4/9 = 8/9
(2a)^2 = (4/3)^2 = 16/9
a .....| 2a | a^2 | 2a^2 | (2a)^2
2 ....|.4 ... | ..4 | ......8 ...| ..16.....
-3....|..-6. | .9.. | ......18.. | ...36..
2/3.| 4/3..|4/9. | .8/9.. | ..16/9.
