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Maylinedepoorter
@Maylinedepoorter
April 2019
2
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Bonjour j'aimerais savoir la forme développer et reduite de (1-3x) au carré.
merci de votre aide
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MissA1
Verified answer
A=
A=(1-3x)(1-3x)
A=1-3x-3x+9
A=9
-6x+1
2 votes
Thanks 2
ficanas06
(a-b)² = a² - 2ab + b²
(1-3x)² = 1 - 6x + 9x² =
9x²-6x+1
0 votes
Thanks 0
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coucou pouriez vous m'aider svp... je suis coincer a la question 4..merci d'avance :(
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Bonjour j'aimerai savoir la valeur de 1/3ab b=3 merci de votre aide
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Verified answer
A=A=(1-3x)(1-3x)
A=1-3x-3x+9
A=9
(1-3x)² = 1 - 6x + 9x² = 9x²-6x+1