AIDEZ MOI J ARRIVE PAS A LE FAIRE

121 km
810 hm = 0.81 km
107
9400 dam = 94 km
1190 hm = 1.19 km
14200 dam = 142 km
100 km
93 000 m = 93 km
900 hm = 0.9 km
95000 m = 95 km
total  754.90 km

bonsoir

A = 4 x² - 9 - (2 x² - 2 x + 3 x - 3)
A = 4 x² - 9 - 2 x² + 2 x - 3 x +3
a = 2 x² - x - 6

4 x² -9 = ( 2 x -3) ( 2 x +3)

A = ( 2 x -3 ) ( 2 x +3) - ( 2 x +3)( x -1)
a = ( 2 x +3) ( 2 x -3 - x + 1)
A = ( 2 x + 3) ( x - 2)

pour x  = 3/2
A = ( 6/2 + 3 ) ( 3/2 - 2)
A = ( 6/2 + 6/2 ) ( 3/2 - 4/2)
A = 12/2 x - 1/2
A = 1 x - 1/2 = - 1/2

pour x =  - 4

a =(- 8  + 3) ( - 4 -2)
a = - 5 x - 6 = 30