Question

Resolva.
a)( )+ ( +3)=2
b)( )÷( -5 )= + 30
c)( -7) 2=
d)(-8) . (-7 )=
e)- 12 - ( - 5 )=
f)( ( + 3 ) . ( - 3 ) . ( - 3 ) . ( - 3 )=
g) ___ + 20= 10
h) ___ - 5= 0
i) ( - 2 ) . ( - 3 ) . ( )= 60
j) - 25 + ( - 8 )
k) ( - 1 ) 7 . =

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Answer 1

Explicação passo-a-passo:

a) - 1+3=+2

b)(-150)÷(-5)=+30

c)(-7)²= +49

d)(-8).(-7)= +56

e) -12 -(-5)= -12 +5= -7

f)(+3).(-3).(-3).(-3)= (-9).(-3).(-3)= (+27) .(-3)= - 81

g)-10+20= 10

h)5-5=0

i)(-2).(-3) .10= 6 .10= 60

j) - 25 +(-8)= -25 - 8= - 33

k) (-1)^7= - 1