bjr

on suppose qu'il faut factoriser

8x + 8 = 8*x + 8*1 = 8(x+1)

4x - 24 = 4*x - 4*6 = 4 (x-6)

9yx + 13x = x (9y + 13)

3x² + 21x = 3*x*x + 3*x*7 = 3x (x + 7)

et 25x + 45 = 5*5*x + 5*9 = 5 (5x + 9)

bonjour

8 x + 8 = 8 ( x + 1 )

4 x - 24 = 4 ( x - 6 )

9 xy + 13 x =  x ( 9 y + 13 )

3 x² + 21 x = 3 x ( x  + 7 )

25 x + 45  = 5 ( 5 x + 9 )