Explicación paso a paso:
1.
(-5).0= 0
(-9).1= -9
(+8).(-4) = -32
3.(-7+4) = -9
2.
A) (3.-7).(+4) = (3).(-7.+4)
B) (+11).(-4) = (-4).(+11)
3.
A) (+5)(-7)+(+5)(+8)+(+5)(-11)+(+5)(+4)
B) (-8)(+9)+(-8)(-10)+(-8)(+4)
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Explicación paso a paso:
1.
(-5).0= 0
(-9).1= -9
(+8).(-4) = -32
3.(-7+4) = -9
2.
A) (3.-7).(+4) = (3).(-7.+4)
B) (+11).(-4) = (-4).(+11)
3.
A) (+5)(-7)+(+5)(+8)+(+5)(-11)+(+5)(+4)
B) (-8)(+9)+(-8)(-10)+(-8)(+4)