Question

Se dau nr intregi a=-2+3-5,b=1-7-4 si c=-4+7-¹1. Calculati /a-b-c/ si/-a+b+c/

Answer 1

a = 1 -5

a = -4

b = -6 -4

b = -10

c = 3 -1

c = 2

a - b - c = -4 -(-10) -2

= -4 +10 -2

= 6 -2

= 4

-a + b + c = -(-4) +(-10) +2

= 4 -10 +2

= -6 +2

= -4