bonjour
A = 6 x ( - 4 x + 3 )
= - 24 x² + 18 x
A = - 5 ( 2 x - 6 )
= - 10 x + 30
A = 24 x + 16 y
= 8 (- 3 x + 2 y )
B = 21 - 27 a
= 3( 7 - 9 a)
A = ( x - 4 ) ( 3 x - 8 )
= 3 x² - 8 x - 12 x + 32
= 3 x² - 20 x + 32
B = ( x - 3 ) ( 2 x - 6 )
= 2 x² - 6 x - 6 x + 18
= 2 x² - 12 x + 18
C = ( x - 2 ) + ( 5 x - 3 )
= x - 2 + 5 x - 3
= 6 x - 5
D = 4 x + ( 5 x - 6 )
= 4 x + 5 x - 6
= 9 x - 6
