
Factorisation: De la somme au produit
Presentation
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Mathematics
•
9th Grade
•
Medium
Abderrahim Sibouss
Used 2+ times
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9 Slides • 4 Questions
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La factorisation est le processus de décomposition d'une expression mathématique en un produit de facteurs. Dans cette présentation, nous explorerons comment passer d'une somme à un produit en utilisant des techniques de factorisation.
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Factorisation: De la somme au produit
3
Multiple Choice
What is the process of transforming a sum or difference into a product called?
Distributivité
Identité remarquable
Factorisation
Transformation
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Factorisation
Trivia: Factorisation is the process of transforming a sum or difference into a product. It is a fundamental concept in mathematics and is used in various areas such as algebra and calculus. Factorisation helps simplify expressions and solve equations. It is an essential skill for solving mathematical problems efficiently.
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Factorisation: De la somme au produit
Factorisation: On peut factoriser l'expression (a + 3) - (4a - 5) (a + 3) en utilisant la distributivité. En simplifiant, on obtient E = (a + 3) (-2a + 4).
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Multiple Choice
What is the result of factorising the expression (a + 3) - (4a - 5) (a + 3)?
-2a^2 - 2a + 12
-2a^2 + 2a - 12
-2a^2 + 2a + 12
-2a^2 - 2a - 12
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Factorising Expression
Trivia: Factorising the expression (a + 3) - (4a - 5) (a + 3) results in -2a^2 + 2a + 12. This expression can be simplified by distributing the negative sign to both terms inside the parentheses and combining like terms. The resulting quadratic expression has a leading coefficient of -2 and a constant term of 12.
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Factorisation: De la somme au produit
Méthode 1: L'aire de la surface colorée est (a - b)².
Méthode 2: L'aire de la surface colorée est a² - 2ab + b².
Cours: Identité remarquable n°2
Activité 3: (a + b)(a - b)
On assemble deux trapèzes rectangles identiques pour calculer l'aire totale.
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Multiple Choice
What is the area of the colored surface in the given activity?
(a - b)²
a² - 2ab + b²
a² + 2ab + b²
a² + b²
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Area Formula: a² - 2ab + b²
Trivia: The formula a² - 2ab + b² represents the area of the colored surface in the given activity. It is derived from the expansion of (a - b)², which simplifies to a² - 2ab + b². This formula is commonly used in algebra to calculate the area of a square or rectangle with side lengths a and b.
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Factorisation: De la somme au produit
Étape 1: Identifier les produits
Étape 2: Repérer un facteur commun
Étape 3: Utiliser une des 3 identités remarquables:
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Multiple Choice
What is the next step in the factorization process?
Étape 4: Utiliser une des 3 identités remarquables
Étape 5: Simplifier l'expression obtenue
Étape 6: Vérifier le résultat
Étape 7: Répéter le processus pour d'autres expressions
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Factorization Process:
Trivia: The next step in the factorization process is to use one of the 3 remarkable identities. This step helps simplify the expression further. After this, you can proceed to simplify the obtained expression, verify the result, and repeat the process for other expressions.
La factorisation est le processus de décomposition d'une expression mathématique en un produit de facteurs. Dans cette présentation, nous explorerons comment passer d'une somme à un produit en utilisant des techniques de factorisation.
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