Sagot :

loulakar

Réponse :

Explications étape par étape

Bonjour

Factoriser :

A = 7x - 14

A = 7 * x - 7 * 2

A = 7(x - 2)

B = 12t + 6

B = 6 * 2t + 6 * 1

B = 6(2t + 1)

A = a^2 + 3a

A = a * a + 3 * a

A = a(a + 3)

B = 4b^2 - 12

B = 4 * b^2 - 4 * 3

B = 4(b^2 - 3)

A = 2t^2 - 3t

A = t * 2t - t * 3

A = t(2t - 3)

B = 4x^2 + 20x

B = 4x * x + 4x * 5

B = 4x(x + 5)

A = -5x^2 + 25x

A = 5x * (-x) + 5x * 5

A = 5x(-x + 5)

B = -10 - 16a

B = -2 * 5 - 2 * 8a

B = -2(5 + 8a)

fidaaijmouane48

Bonsoir

50.

A = 7x - 14

A = 7 × x - 7 × 2

A = 7 (x - 2)

B = 12t + 6

B = 6 × 2t + 6 × 1

B = 6 (2t + 1)

51.

A = a² + 3a

A = a × a + a × 3

A = a (a + 3)

B = 4b² - 12

B = 4 × b² - 4 × 3

B = 4 (b² - 3)

52.

A = 2t² - 3t

A = t × 2t - t × 3

A = t (2t - 3)

B = 4x² + 20x

B = 4x × x + 4x × 5

B = 4x (x + 5)

53.

A = -5x² + 25x

A = 5x × (-x) + 5x × 5

A = 5x (-x + 5)

B = -10 - 16a

B = 2 × (-5) - 2 × 8a

B = 2 (-5 - 8a)