Verified answer

Réponses:

A : 3*2x+3*7= 6x+21

B: 2*5-2*3x= 10-6x

C: 4y*5-4y*2y= 20y-8y^2

Voilà ;)

Verified answer

Bonjour,

A= 3(2x+7)

A= 3×2x + 3×7

A= 6x + 21

B= 2(5-3x)

B= 2×5 - 2×3x

B= 10 - 6x

C= 4y(5-2y)

C=  4y×5 - 4y×2y

C= 20y - 8y²