bonjour
R = - 3 y ( 2 - 4 y)
R = - 6 y + 12 y²
N = - 4 ( 2 a - 5 )
N = - 8 a + 20
pour a = - 3
N = - 8 ( -3) + 20 = 24 + 20 = 44
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bonjour
R = - 3 y ( 2 - 4 y)
R = - 6 y + 12 y²
N = - 4 ( 2 a - 5 )
N = - 8 a + 20
pour a = - 3
N = - 8 ( -3) + 20 = 24 + 20 = 44