Question

Calcule o valor de:
a) 3²-23+(1/2)com exponte 0

b) 4.2³-(3/2).(-2)¹

c) 5¹.3com expoente -2 +3com expoente -1 - 3.3com expoente 0

d) 2³-2.3²

e) (-1)com expoente 10 +3.(-1)com expoente 5 - 3.(-1)com expoente 6

f) (+5)com expoente 4 - (-5)com expoente 4

Answer 1

Boa Tarde,

A) 3^2-23+1 ( todo expoente elevado a 0 é 1)
9-23+1 = -13

B) 4.8-(3/2).-2
32 - 6/2 = 28/2 ou 14/1, resposta 14.

C) 5. 1/9 + 1/3 - 3.1
5/9 + 1/3 - 3
5/9 + 3/9 - 27/9
5 +3-27= -19

D) 8-2.9
8-18= -10

E) 1+3.-1-3.1
1-3-3= -5

F) 625 - 625= 0

Answer 2

a) 3^2-23+(1/2)^0
=9-23+1
= - 13

b) 4×2^3-(3/2)×(-2)^1
=32-(3/2)×(2)
=32-6/2
=29

c) 5×3^-2+3^-1-3×3^0
=5×(1/3)^2+(1/3)-3×1
=5/9+(1/3)-3
=(5/9)+(1/3)-9/3
=(5/9)-(8/3)
=(19/9)

d) 2^3-2×3^2
=8-18
=-10

e) -1^10+3×(-1)^5-3×(-1)^6
=1-3-3
=-5

f) 5^4-(-5)^4
=625-625
=0

;)