Question

1)Efectuati calculele si reduceti termenii asemenea :
a)2(3a-4b)-3(a-2b)+4(-2a+3b);
b)4(3x+2y)-5(2x-3y)+3(-4x)-5y):
 c)3(5x-2y)-5(2x+y)+2(-3x-4y)-4(-x-3y);
d)3(4a+5b)-5(3a+3b)-4(3a+4b)+2(-a-3b):
 ajutor vreu sa scriti explicit 

Answer 1

a)6a-8b-3a+6b-8a+12b= =-5a+10b Celelalte se rezolva la fel.