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Pour les exercices 50 à 53, factoriser chaque
expression.
50 A=7x-14
B= 12t+6

51 A=a² + 3a
B = 4b²-12

53 A=-5x² + 25x
B=-10-16a

52 A=2t²-3t ²
B=4x²+20x


Répondre :

Bonjour;

50 A=7x-14

= 7( x-2)

B= 12t+6

= 6(2t+1)

51 A=a² + 3a

= a(a +3)

B = 4b²-12

= 4( b² -3)

53 A= -5x² + 25x

= 5x(-x +5)

B=-10-16a

= 2(5-8a)

52 A=2t²-3t ²

= t²( 2-3)

B=4x²+20x

= 4x( x+5)