Answered


M = (x + 7)(5x + 2) - 3(5x + 2)2
N = 7x(2x + 3) + 2x + 3

Sagot :

ALEXB18

Réponse:

M= 5x^2+2x+35x+14-30x-12

= 5x^2+7x+2...

N= 14x^2+21x+2x+3

= 14x^2+23x+3