Question
on considère l'expression E= (2x-1)(x+3)-(x+3)(4x-2)
calculez alors la valeur de E pour x=-2
3
calculez alors la valeur de E pour x=-2
3
Asked by: USER1829
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Answer (160)
bonsoir
e = ( 2 x² + 6 x - x - 3) - ( 4x² - 2 x + 12 x - 6)
E = 2 x² + 5 x -3 - 4 x² + 2 x - 12 x +6
e = 3 x² - 5 x + 3
pur x = - 2
E = 12 + 10 + 3 = 25
e = ( 2 x² + 6 x - x - 3) - ( 4x² - 2 x + 12 x - 6)
E = 2 x² + 5 x -3 - 4 x² + 2 x - 12 x +6
e = 3 x² - 5 x + 3
pur x = - 2
E = 12 + 10 + 3 = 25