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berai
@berai
June 2021
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bonsoir je n'arrive pas à ce calculs et la géométrie merci de m'aider svp
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spat
Pour la question 3 tu peux mettre que c'est un parallélogramme car ABCD n'a pas d'angle droit
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linouchette
A=(5x-3)^2+(4x-8)(4x+8)-(10+3x)^2
a=25x^2-30x+9+16x^2-64-(100+60x+9x^2)
a=25x^2-30x+9+16x^2-64-100- 60x-9x^2
a=32x^2-90x-155
1 votes
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linouchette
^2 veut dire "au carré"
berai
merci bcp
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berai
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a=25x^2-30x+9+16x^2-64-(100+60x+9x^2)
a=25x^2-30x+9+16x^2-64-100- 60x-9x^2
a=32x^2-90x-155