Double distributivité Ex1 : Développer. A = (x + 4)(x + 2)B = (4a + 5) (3 + 2a) C = (4t+ 3)² D = (3 .... Pergunta de ideia dejeandemangelilian01

March 2023 1 42 Report

Double distributivité Ex1 :
Développer.
A = (x + 4)(x + 2)
B = (4a + 5) (3 + 2a)
C = (4t+ 3)²
D = (3 + 2x²)(x + 1)

Développer.

A = (x + 4)(x + 2)

= x² + 2 x + 4 x + 8

= x² + 6 x + 8

B = (4a + 5) (3 + 2a)

= 12 a + 8 a² + 15 + 10 a

= 8 a² + 22 a + 15

C = (4t+ 3)²

= 16 t² + 24 t + 9

D = (3 + 2x²)(x + 1)

= 3 x + 3 + 2 x ³ + 2 x²

= 2 x ³ + 2 x² + 3 x + 3