Răspuns :
Răspuns:
a=-2-(-4)
a=-2+4=>a=2
b=-3+(-9)-(-2)·(-4)
b=-3+(-9)-8
b=-3+9-8
b= -2
(a-3b)/(3a+b)=[2 -3·(-2)]/[3·2 +(-2)]=(2+6)/(6+(-2)=(8/4)⁽²=2
Răspuns:
a=-2-(-4)
a=-2+4=>a=2
b=-3+(-9)-(-2)·(-4)
b=-3+(-9)-8
b=-3+9-8
b= -2
(a-3b)/(3a+b)=[2 -3·(-2)]/[3·2 +(-2)]=(2+6)/(6+(-2)=(8/4)⁽²=2