👤

Sagot :

Bonsoir,

A: double distributivité

x*x=x²

x*3 = 3x

4*x = 4x

4*3 = 12

=> x² +3x+4x+12 = x² +7x+12

B= 2y² +8y +6y +24= 2y² +14y +24

C= 15z + 18z² + 20 + 24z = 18z² + 39z + 20

d= 21t + 35t² + 24 + 40t = 35t ² + 61t + 24

Other Questions

© 2024 IDNLearn. All rights reserved.