bonjour
A = 3 x ( 3 x² - 5 + 6 x )
A = 3 x ³ - 15 x + 18 x²
B = 7 x² + 3 x + 3 ax + 3 x
B = 7 x² + 6 x + 3 ax
B = x ( 7 x + 6 + 3 a)
C = 1 100 x 2.32
C = 1 000 x 2.32 + 100 x 2.32
C = 2320 + 232 = 2552
D = 159 x 33 - 33 x 59
= 33 ( 159 - 59 )
= 33 x 100
= 3300
bon dimanche
