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Sagot :

VINS

Bonsoir

4 a² - 2 a² + 3 a + 5 a - 5 + 7

= 2 a² + 8 a + 2

- 5 x² + 6 x + 4 x + 4 - 10

= - 5 x² + 10 x - 6

(a + 4 ) ( 2 a + 4 ) = 2 a² + 4 a + 8 a + 16 = 2 a² + 12 a + 16

( 2 a - 5 ) ( a + 5 )  = 2 a² + 10 a - 5 a - 25 = 2 a² + 5 a - 25

MATHIASS11

Réponse :

4 a² - 2 a² + 3 a + 5 a - 5 + 7

= 2 a² + 8 a + 2

- 5 x² + 6 x + 4 x + 4 - 10

= - 5 x² + 10 x - 6

(a + 4 ) ( 2 a + 4 ) = 2 a² + 4 a + 8 a + 16 = 2 a² + 12 a + 16

( 2 a - 5 ) ( a + 5 )  = 2 a² + 10 a - 5 a - 25 = 2 a² + 5 a - 25

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