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Sagot :

VINS

bonjour

A = 3 x² - 12 x  = 3 x ( x - 4 )

B  =  - 10 x² + 15 x ³  =  - 5 x ( 2 x - 3 x² )

C  = 64 x² - 25  = ( 8 x - 5 ) ( 8 x +5 )

D = 9 x² + 30 x + 25 = ( 3 x + 5 )²

E =  64 - 48 x + 9 x² = ( 3 x - 8 )²

LOULAKAR

Réponse :

Explications étape par étape

Bonjour

Factoriser :

A = 3x^2 - 12x

A = 3x * x - 3x * 4

A = 3x(x - 4)

B = -10x^2 + 15x^3

B = 5x^2 * (-2) + 5x^2 * 3x

B = 5x^2(-2 + 3x)

C = 64x^2 - 25

C = (8x)^2 - 5^2

C = (8x - 5)(8x + 5)

D = 64/9 - 25x^2

D = (8/3)^2 - (5x)^2

D = (8/3 - 5x)(8/3 + 5x)

E = 9x^2 + 30x + 25

E = (3x)^2 + 2 * 3x * 5 + 5^2

E = (3x + 5)^2

F = 64 - 48x + 9x^2

F = 8^2 - 2 * 8 * 3x + (3x)^2

F = (8 - 3x)^2

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