👤

Sagot :

1/ -2x*5x= -10x au carré
-2x*-1= 2x
-3*5x= -15x
-3*-1= 3

2/ (5x-1)(-2x-3)= 5x*-2x + 5x*-3 + -1*-2x + -1*-3
= 10x au carré - 15x + 2x - 3
10x au carré - 13x - 3

© 2024 IDNLearn. All rights reserved.