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Sagot :

Réponse:

Voici la solution pour la factorisation

View image CHLOE3389

[tex] {(x + 7) }^{2} - > (a + b {)}^{2} = a {}^{2} + 2ab + b {}^{2} [/tex]

[tex](x + 7 {)}^{2} - 25 = x {}^{2} + 14x + 49 - 25 = x {}^{2} + 14x + 24[/tex]

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