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nene62231
@nene62231
June 2021
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Bonjour
Je doit développer et réduire ( x + 5 )² - ( x - 5 )²
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maudmarine
Verified answer
(x + 5)² - (x - 5)²
= x² + 10x + 25 - (x² - 10x + 25)
= x² + 10x + 25 - x² + 10x - 25
= 20x
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nene62231
June 2021 | 0 Respostas
je vous en suppli aider moi , c'est noter sur 20<3
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nene62231
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" the shard " se trouve dans quel quartier de londres svp
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nene62231
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help svp c'est urgent!!!!!!!!!!!
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nene62231
June 2021 | 0 Respostas
Pourriez vous m'aider , surtout justifier , en faisant les calculs et tout , merci :p
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nene62231
June 2021 | 0 Respostas
aider moi svp svp svp svp
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nene62231
June 2021 | 0 Respostas
exo 2 svp , merci bcp de m'aider
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nene62231
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nene62231
June 2021 | 0 Respostas
pourriez vous m'expliquez le present perfect et le pretierit simple svp : que mettre a la fin ... , je comprend rien :/ <3
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nene62231
June 2021 | 0 Respostas
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Verified answer
(x + 5)² - (x - 5)²= x² + 10x + 25 - (x² - 10x + 25)
= x² + 10x + 25 - x² + 10x - 25
= 20x