April 2019 1 79 Report
Il faut compléter la ou y'a les petits points:

a) X2 + 10x + 25=(....)2 + 2 x........x.....+(....)2
X2+10x + 25= (....+.....)2


b) 4x2-12x + 9= (.....)2 - 2 x ...... x ..... + (...)2
4x2-12x + 9= (......-......)2

Merci


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