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Thomas83150
@Thomas83150
May 2019
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FACTORISER
A=4x^2+4x+1
B=x^2-20x+100
C=x^2-16
D=x^2+25
E=3x^2-5
F=(2x+3)^2-100
G=(4x+1)^2-(x-4)^2
Merci de bien détailler toutes les factorisation je sais que c'est long mais j'ai vraiment besoin d'aide merci d'avance
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loulakar
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Bonsoir,
Factoriser :
A = 4x^2 + 4x + 1
A = (2x)^2 + 2 * 2x * 1 + (1)^2
A = a^2 + 2 * a * b + b^2
A = (a + b)^2
A = (2x + 1)^2
B = x^2 - 20x + 100
B = (x)^2 + 2 * x * (-10) + (-10)^2
B = (x - 10)^2
C = x^2 - 16
C = a^2 - b^2
C = (a - b)(a + b)
C = (x)^2 - (4)^2
C = (x - 4)(x + 4)
D = x^2 + 25
Pas de factorisation possible
E = 3x^2 - 5
Pas de factorisation possible
F = (2x + 3)^2 - 100
F = a^2 - b^2
F = (2x + 3)^2 - (10)^2
F = (2x + 3 - 10)(2x + 3 + 10)
F = (2x - 7)(2x + 13)
G = (4x + 1)^2 - (x - 4)^2
G = (4x + 1 - x + 4)(4x + 1 + x - 4)
G = (3x + 5)(5x - 3)
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Oui bonjour j'aurai de nouveau besoin de votre aide pour un avant-dernier exercise Merci d'avance
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Bonjour j'ai besoin d'aide la je ne comprend pas du tout ce qu'il faut faire merci pour votre aide
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Report "FACTORISER A=4x^2+4x+1 B=x^2-20x+100 C=x^2-16 D=x^2+25 E=3x^2-5 F=(2x+3)^2-100 G=(4x+1)^2-(x-4)^2 M.... Pergunta de ideia de Thomas83150"
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Lista de comentários
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Bonsoir,Factoriser :
A = 4x^2 + 4x + 1
A = (2x)^2 + 2 * 2x * 1 + (1)^2
A = a^2 + 2 * a * b + b^2
A = (a + b)^2
A = (2x + 1)^2
B = x^2 - 20x + 100
B = (x)^2 + 2 * x * (-10) + (-10)^2
B = (x - 10)^2
C = x^2 - 16
C = a^2 - b^2
C = (a - b)(a + b)
C = (x)^2 - (4)^2
C = (x - 4)(x + 4)
D = x^2 + 25
Pas de factorisation possible
E = 3x^2 - 5
Pas de factorisation possible
F = (2x + 3)^2 - 100
F = a^2 - b^2
F = (2x + 3)^2 - (10)^2
F = (2x + 3 - 10)(2x + 3 + 10)
F = (2x - 7)(2x + 13)
G = (4x + 1)^2 - (x - 4)^2
G = (4x + 1 - x + 4)(4x + 1 + x - 4)
G = (3x + 5)(5x - 3)