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aidez moi svp calculer l expression (3x+1)(6-x)lorsque a)x=4 b)x=-2 c)x=5÷6​

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LOULAKAR

Réponse :

Explications étape par étape

Bonjour

calculer l expression (3x+1)(6-x)lorsque

a)x=4

= (3 * 4 + 1)(6 - 4)

= (12 + 1) * 2

= 13 * 2

= 26

b)x=-2

= (3 * (-2) + 1)(6 - (-2))

= (-6 + 1)(6 + 2)

= (-5) * 8

= (-40)

c)x=5÷6​

= (3 * 5/6 + 1)(6 - 5/6)

= (5/2 + 2/2)(36/6 - 5/6)

= 7/2 * 31/6

= (7 * 31)/(2 * 6)

= 217/12