Répondre :
Bonjour
A = 6x ( - 1 ) = - 6
B = ( - 3 ) x ( - 1 ) = 3
C = 10 x ( - ) = - 10
D = - 1 - 9 x ( - 3 ) = - 1 + 27 = 26
F = - 3 x 6 - 5 x ( - 5) = - 18 + 25 = 7
F = 2x ( 13 - 16 ) + 9 = 2 x (- 3) + 9 = - 6 + 9 = 3.
Réponse :
Bonjour
Explications étape par étape
A = 6x ( - 1 ) = -6
B = ( - 3 ) x ( - 1 ) = +3
C = 10 X -1 = - 10
D = - 1 - 9 X ( - 3 )
D = -1 +27 = +26
F = - 3 X 6 - 5 X ( - 5)
F = -18 +25 = + 7
F = 2 X ( 13 - 16 ) + 9
F = 2 X -3 +9
F = -6 +9 = +3