Bonjour,
Factoriser les expressions:
2x(5x+1)+3(5x+1)= (5x+1)(2x+3)
(4x-7)(x+2)-(3x-5)(4x-7)= (4x-7)(x+2-3x+5)= (4x-7)(-2x+7)= - (4x-7)(2x-7)
(3x+2)(2x-1)+4x(2x-1)= (2x-1)(3x+2+4x)=(2x-1)(7x+2)
(2x-5)(x-3)-4(x-3)= (x-3)(2x-5-4)= (x-3)(2x-9)
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Bonjour,
Factoriser les expressions:
2x(5x+1)+3(5x+1)= (5x+1)(2x+3)
(4x-7)(x+2)-(3x-5)(4x-7)= (4x-7)(x+2-3x+5)= (4x-7)(-2x+7)= - (4x-7)(2x-7)
(3x+2)(2x-1)+4x(2x-1)= (2x-1)(3x+2+4x)=(2x-1)(7x+2)
(2x-5)(x-3)-4(x-3)= (x-3)(2x-5-4)= (x-3)(2x-9)