👤

Sagot :

Réponse:

4(a^2+2a-5)+3a-5

4a^2+8a-20+3a-5

4a^2+11a-25

C=3a^2-15

3(a^2-5)=0

a^2=5

a=racine5

D=4b^2-16b

4b(b-4)=0

b=4

© 2024 IDNLearn. All rights reserved.