Answered

bjr je narrive pas mon exercice
il faut factoriser
a) 41²-39²
b)56²-44²
c)29²-21²

Sagot :

LOULAKAR

Bonjour

factoriser

a) 41²-39²

= (41 - 39)(41 + 39)

= 2 x 80

= 160

b)56²-44²

= (56 - 44)(56 + 44)

= 12 x 100

= 1200

c)29²-21²

= (29 - 21)(29 + 21)

= 8 x 50

= 400