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Sagot :

Réponse :

Explications étape par étape

Bonjour

factoriser_

a³-8+4(a²-4)-3a+6​

= (a - 2)(a^2 + 2a + 4) + 4(a - 2)(a + 2) - 3(a - 2)

= (a - 2)(a^2 + 2a + 4 + 4(a + 2) - 3)

= (a - 2)(a^2 + 2a + 4 + 4a + 8 - 3)

= (a - 2)(a^2 + 6a + 9)

= (a - 2)(a^2 + 2 * a * 3 + 3^2)

= (a - 2)(a + 3)^2

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