besoin aide pour exercices 1.3.4 merçi d avance

Salut ! 

" * " --> veut dire "x" (multiplier)

Exercice 1 : 
[tex]a) 23 + 8b = 23 + 8*b \\ \\ b) m^{2} - 5g = m*m - 5g \\ \\ c) \frac{1}{8}q + \frac{7a}{3} = \frac{1}{8}*q + \frac{7*a}{3} \\ \\ d)12kg(g+h) = 12kg*(g + h) = 12kg*g + 12kg * h[/tex]

Exercice 3 :
[tex]a) 6*a = 6a \\ \\ b) 8*b = 8b \\ \\ c) 23*d = 23d \\ \\ d) a*b = ab \\ \\ e) x*9 = 9*x = 9x \\ \\ f) y*3 = 3*y = 3y \\ \\ g) e*5 = 5*e = 5e \\ \\ h) g*12 = 12*g = 12g[/tex]

Exercice 4 :
[tex]a) 2*5*d = 10*d = 10d \\ \\ b) 3*e*8 = 3*8*e = 24*e = 24e \\ \\ c) g*8*9 = 8*9*g = 72*g=72g \\ \\ d) 3*(n+m) = 3*n +3*m = 3n+3m \\ \\ e) (a+b) *5 = 5*(a+b) = 5*a + 5*b = 5a + 5b \\ \\ f) b*(5*e+7) = b*(5e + 7) = b*5e + b*7 = 5eb + 7b[/tex]

J'espère t'avoir aidé(e) ! :)