bonjour
A = 3 x + 2 x = x ( 3 + 2 ) = x ( 5 )
b = 4 x + 8 = 4 ( x + 2 )
C = x² + 3 x = x ( x + 3 )
d = - 16 + 8 y = - 8 ( 2 - y )
e = 3 x + x = 4 x = x ( 4 )
f = x² - x = x ( 3 x - 1 )