resoudre chaque equation (2x+3)(x-5)=2x(x-2) (2x-9)(8x-1)=(4x+3)²
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Question
resoudre chaque equation (2x+3)(x-5)=2x(x-2)
(2x-9)(8x-1)=(4x+3)²
(2x-9)(8x-1)=(4x+3)²
1 Réponse
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1. Réponse dolcy
(2x+3)(x-5)=2x (x-2) <=> 2x^2 -10x +3x - 15 = 2x^2 - 4x
<=> -7x + 4x = 15
<=> -3x= 15
<=> x= -5