MANOON93
Answered

Développer puis réduire :
A = 8-4(x-3)
B = 2(3-4x)+4(1-2x)
​

Sagot :

LABESTDE2005

Réponse:

A = 8-4(x-3)

A = 8-4x-4×(-3)

A= 8-4x+12

A= 8+12-4

A= 20-4x

B = 2(3-4x)+4(1-2x)

B= 2×3-2×4x+4(1-2x)

B= 6-2×4x+4(1-2x)

B= 6-8x+4(1-2x)

B= 6-8x+4-4×2x

B= 6-8x+4-8x

B= 10-8x-8x

B=10-16x