Answered

Exemple 1:
Factoriser les expressions suivantes :
A = 25 – 10a ; B = 49 - t2; C = 16-9b2 ; D = 24x2 - 6x ;
F = (3x+2)(x-6) + (3x+2)(5-2x); G = (b-9)(56+1) – (3b+4)(b-9).
E = 8t + 40;
Svpp

Sagot :

inequation

Bonsoir,

Factoriser:

A = 25 – 10a= 5(5-2a)

B = 49 - t2= (7-t)(7+t)= -(t-7)(t+7)

C = 16-9b2 = (4-3b)(4+3b)= - (3b-4)(3b+4)

D = 24x2 - 6x = 6x(4x-1)

F = (3x+2)(x-6) + (3x+2)(5-2x)= (3x+2)(x-6+5-2x)= (3x+2)(-x-1)= - (3x+2)(x+1)

G = (b-9)(56+1) – (3b+4)(b-9)= expression incomplète

E = 8t + 40= 8(t+5)