Bonjour,
Factoriser :
A = (5x - 3) (2x + 6) - (5x - 3)²
A = [(2x + 6) - (5x - 3)] (5x - 3)
A = (2x + 6 - 5x + 3) (5x - 3)
A = (- 3x + 9) (5x - 3)
C'est OK.
Factoriser A
A= |(2x+6)-(5x-3)](5x-3)
A= (2x+6-5x+3)(5x-3) attention un changement de signe
A= (-3x+9)(5x-3)
A= -3(x-3)(5x-3) encore simplifier
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Bonjour,
Factoriser :
A = (5x - 3) (2x + 6) - (5x - 3)²
A = [(2x + 6) - (5x - 3)] (5x - 3)
A = (2x + 6 - 5x + 3) (5x - 3)
A = (- 3x + 9) (5x - 3)
C'est OK.
Bonjour,
Factoriser A
A= |(2x+6)-(5x-3)](5x-3)
A= (2x+6-5x+3)(5x-3) attention un changement de signe
A= (-3x+9)(5x-3)
A= -3(x-3)(5x-3) encore simplifier