On considère l'expression E = (2x - 1)(x + 3) - (x + 3)(4x - 2)
Calculer alors la valeurs de E pour x = - 2/3
Merci de l'aide :)
Calculer alors la valeurs de E pour x = - 2/3
Merci de l'aide :)
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e = (2*-2/3 -1)(-2/3+3) -(-2/3+3)(4*-2/3-2)
e = (-4/3 -1)(-2/3+9/3) -(-2/3 +9/3)(-8/3 -2)
e =(-4/3 -3/3) (+7/3) -( +7/3) (-8/3-6/3)
e = -7/3 x 7/3 -( 7/3) x -14/3
e = -49/9v+98/9
e = 49/9