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exercice 13 4ème merci

Exercice 13 4ème Merci class=

Sagot :

Bonsoir,

A= 2( 2-3) = 2* -1 = -2

B= 3*2 -2*-3 = 6 +6 = 12

C= 2* 2² + 5*-3 -3 = 8  -15 -3 =  -10

D= 2(2+3) = 2* 5 = 10

E = 4*2*-3= -24

F = 5*2² - 8*2*-3 = 20 +48 = 68