Question

Calcule as expressões:
a) (-3) . (+7) + (-8) . (-3)
b) (-3)^3 + (+2)^2 -
c) 8 + (-3-1)^2

d) (-2+6)^3 : (+3-5)^2
e) -(-5)^2 + (-7+4)
f) (-2)^6 + (+5) . (-2)

me ajudem pfv

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Answer 1

a)-21+24=-45

b)-27+4=-23

c)8+(-3-1)^2

8+(-4)^2

8+16=24

d)(-2+6)^3:(+3-5)^2

(+4)^3:(-2)^2

64:4 =16

e)-(-5)^2+(-7+4)

-(25)-3

-25-3= -28

f)(-2)^6+(+5).(-2)

+64+(-10)

64-10=54

espero ter ajudado