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Lauremaes
@Lauremaes
April 2019
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Développer et réduire A.
Factoriser A.
A = (x-5)^2-(2x-7)(x-5).
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senmusa
Verified answer
On développe:
A= x² + 25 - 10x - 2x² + 10x + 7x - 35
et on réduit:
A = - x² + 7x - 10
Factorisation: on va mettre (x-5) en évidence:
A= (x-5) (x-5 - 2x + 7)
= (x-5)(-x+2)
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Verified answer
On développe:A= x² + 25 - 10x - 2x² + 10x + 7x - 35
et on réduit:
A = - x² + 7x - 10
Factorisation: on va mettre (x-5) en évidence:
A= (x-5) (x-5 - 2x + 7)
= (x-5)(-x+2)