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Exercice 6,
Factoriser les expressions suivantes :
A = 9y2 - 6y + 3y B = 12x2 + 6x – 18
-
C = -2a² - 4a -6
Aidez moi svp

Sagot :

Bonjour,

A = 9y² - 6y + 3y

3y ( 3y -2 +3)

= 3y ( 3y +1)

B = 12x² + 6x – 18

= 6 (2x² +x -3)

-

C = -2a² - 4a -6

= 2( a² -2a -3)

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