👤

Sagot :

factorisation de  
a) 9-xau carré 
=9-x²
=(3-x)(3+x)

b)(x+2)au carré -49

=(x+2)²-49
=(x+2-7)(x+2+7)
=(x-5)(x+9)

Other Questions

© 2024 IDNLearn. All rights reserved.