Bonjour,
Factoriser les expressions suivantes.
• A= (x+7)^2 -25
A = (x + 7 - 5) (x + 7 + 5)
A = (x + 2) (x + 12)
• B= (y-9)^2 -36
B = (y - 9 - 6) (y - 9 + 6)
B = (y - 15) (y - 3)
•C= (2x+3)^2-64
C = (2x + 3 + 8) (2x + 3 - 8)
C = (2x + 11) (2x - 5)
•D= 100-(4x-11)^2
D = (10 - 4x + 11) (10 + 4x - 11)
D = (- 4x + 21) (4x - 1)