👤

Sagot :

Bonsoir,

Développer :

(4+3z)² + 4z (4+5z)

= 16 + 24z + 9z² + 16z + 20z²

= 9z² + 20z² + 24z + 16z + 16

= 29z² + 40z + 16.

© 2024 IDNLearn. All rights reserved.