ASSIAABSALON
Answered

Bonjour pouvez vous m'aider svp ?

Factoriser les expressions suivantes.

A = 5x(x + 3) + 9x^2(x + 3)
B = (2 - x) × 4x - 7(2 - x)
C=8(5 - x) +5-x.
D = 2x + 3 + x(2x + 3)​

Sagot :

INEQUATION

Bonjour,

Factoriser:

A = 5x(x + 3) + 9x^2(x + 3)= (x+3)(5x+9x²)= x(x+3)(9x+5)

B = (2 - x) × 4x - 7(2 - x)= (2-x)(4x-7)= -(x-2)(4x-7)

C=8(5 - x) +5-x= (5-x)(8+1)= 9(5-x)= - 9(x-5)

D = 2x + 3 + x(2x + 3)​= (2x+3)(1+x)⇔ (2x+3)(x+1)