Sagot :
Bonjour
Factoriser les expressions suivantes :
A = (x + 5)(x - 2) + (x + 5) (3x + 5)
A = (x + 5) (x - 2 + 3x + 5)
A = (x + 5) (4x + 3)
B = (2x + 5) (2x - 7) - (2x +5) (3x - 4)
B = (2x + 5) [(2x - 7) - (3x - 4)]
B = (2x + 5) (2x - 7 - 3x + 4)
B = (2x + 5) (- x - 3)
Bonjour,
Factoriser:
A = (x + 5)(x - 2) + (x + 5) (3x + 5)= (x+5)(x-2+3x+5)= (x+5)(4x+3)
B = (2x+5) (2x-7) -(2x +5) (3x - 4)= (2x+5)(2x-7-3x+4)= (2x+5)(-x-3)= - (2x+5)(x+3)