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Jaimelechocolat
@Jaimelechocolat
June 2021
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URGENT
calculer : les 2° avec le rond a cote sont des puissances . MERCI D'AVANCE
a) -3(-2)2°-5x7
b) -3(-2-5)2°x7
c) (-3(-2))2°-5x7
d) (-3(-2)-5)2°x7
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droopette
A) -3(-2)²-5x7
=-3*4-35
=-12-35
b) -3(-2-5)²x7
=-3*(-7)²*7
=-3*49*7
=-1029
c) (-3(-2))²-5x7
=(3*2)²-35
=6²-35
=36-35
=1
d) (-3(-2)-5)²x7
=(3*2-5)²*7
=(6-5)²*7
=1²*7
=1*7
=7
* est le signe x multiplié
1 votes
Thanks 1
Jaimelechocolat
merci beaucoup !
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=-3*4-35
=-12-35
b) -3(-2-5)²x7
=-3*(-7)²*7
=-3*49*7
=-1029
c) (-3(-2))²-5x7
=(3*2)²-35
=6²-35
=36-35
=1
d) (-3(-2)-5)²x7
=(3*2-5)²*7
=(6-5)²*7
=1²*7
=1*7
=7
* est le signe x multiplié