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-Forma común:
(-6) . [(+3) +(-3)] =
(-6) . 0 =
0
-Distributiva:
(-6) . [(+3) + (-3)]=
[-18 + 18] =
0
~Ejercicio dos:
-Forma común:
(-4) . [(-7) + (-5) +(-8)] =
(-4) . [ -12 + -8]=
(-4) . -20 =
80
-Distributiva:
(-4) . [(-7) + (-5) + (-8)] =
[28 + 20 + 32] =
48 + 32 =
80
~ Ejercicio tres:
-Forma común:
(+12) . [(+2) +(-8) + (-5) + (+9)]=
(+12) . [-6 + (-5) + (+9)] =
(+12) . [-11 + (+9] =
(+12) . (-2) =
-24
- Distributiva:
(+12) . [(+2) + (-8) + (-5) +(+9)]=
[24 + (-96) + (-60) + 108]=
[-72 + (-60) + 108]=
[-132 + 108]=
-24