Développe les expressions
A = 5x (7 - x)
B = 8x (8 - 8x)
svp​


Sagot :

Bonjour,

A = 5x (7 - x)

A = 5x * 7 - 5x * x

A = 35x - 5x²

B = 8x (8 - 8x)

B = 8x * 8 - 8x * 8x

B = 64x - 64x²