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Emma57sotchez
@Emma57sotchez
April 2019
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Bonsoir à tout le monde , j'ai besoin d'aide pour l'exo suivant s'il vous plaît :
On donne les expressions ci dessous :
A = 2-t+3+4(t-1)
B = 5(t+1)-2(t+2)
C = t(t+2)-t(t-1)+1
D = 3(t ( au carré )+2t) -3t(t+1) +1
Lynda affirme : " Exactement trois des ces expressions ont la même forme réduite "
Cette affirmation est-elle vraie ou fausse ?
Il me faut les réponses rapidement svp ...
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nonotata
Bonsoir
A = 2-t+3+4(t-1) = 5-t+4t-4 =3t+1
B = 5(t+1)-2(t+2) = 5t+5-2t-4 = 3t+1
C = t(t+2)-t(t-1)+1 = t²+2t-t²+t +1= 3t+1
D = 3(t ( au carré )+2t) -3t(t+1) +1 = 3t²+6t-3t²-3t+1 =3t+1
par consequent a b c et d soit 4 expressions ont la meme forme reduite
3 votes
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A = 2-t+3+4(t-1) = 5-t+4t-4 =3t+1
B = 5(t+1)-2(t+2) = 5t+5-2t-4 = 3t+1
C = t(t+2)-t(t-1)+1 = t²+2t-t²+t +1= 3t+1
D = 3(t ( au carré )+2t) -3t(t+1) +1 = 3t²+6t-3t²-3t+1 =3t+1
par consequent a b c et d soit 4 expressions ont la meme forme reduite