Sagot :
Réponse :
1.1
A = -4 (-2)² - 2 x 3 = -16 - 6 = -22
1.2
y² + 8y + 16 - y² - y + 1
7y + 17
1.3
1/6 - 4/3 / -1/2
1/6 - 8/6 / -1/2
-7/6 /-1/2 = 7/3
1.4
2**5 x 2**-2 = 8
(-5**-2)**-2 = 1/625
Bonjour
y= -2
A)
- 4*(-2)² -2*-2
= - 16 +4 = -12
y= 3
-4(3)² -2*3
= -4 *27 -6
= -108 -6 = -114
B)
y² +8y +16 -( y² -2y + 1)
= y² +8y +16 - y² +2y - 1
= 10y +15
C)
(1/6 -8/6) / ( -1/2)
= -7/6 * -2/1
14/6 = 7/3
D)
2*2*2*2*2 *2/100
32 *2/100
= 64/100 = 0,64
E)
-5