Question

(-8+3-5+1)-(-2+4-8-5)=
[-8+(-3+2-1)-2]-[-(4+1-2)+1]=
[-(-3+1-2)+(2-4+5)]+[(-5+3+7)-(-3+1+6)]=

Answer 1

(-8+3-5+1)-(-2+4-8-5)= -10 +7 -13 -4
[-8+(-3+2-1)-2]-[-(4+1-2)+1]= +24 - 16 -8 +16 +4 +1 -2 +1

[-(-3+1-2)+(2-4+5)]+[(-5+3+7)-(-3+1+6)]= +3 -1 +2 +2 -4 +5 -5 +3 +7 +3 -1 -6

Answer 2

1. (-8+3-5+1) - (-2+4-8-5)
=(-8-5+3+1) - (-2-8-5+4)
=(-13+4) - (-15+4)
= -9 - (-11)
= -9 + 11
= 2

2. [-8+(-3+2-1)-2] - [-(4+1-2)+1]
= [-8+(-4+2)-2] - [-(5-2)+1]
= (-8-2-2) - (-3+1)
= -12 - (-2)
= -12 + 2
= - 10

3. [-(-3+1-2)+(2-4+5)] + [(-5+3+7)-(-3+1+6)]
= [ -(-5+1) + (7-4)] + [(10-5) - (7-3)]
= [-(-4) + 3] + [ 5 - (4)]
= (4 + 3) + (5 - 4)
= 7 + 1
= 8

espreo ter ajudado