Question

simplifique as expressões númericas:
A) (-2)²-2^-1
B) 5^-1+5⁰-3^-1
C) 3.10^-2+5.2^-1
D)6²-(-7)²/3^-2+3^-1​

Answer 1

Boa Tarde!

A) 4 - 1/2=

7/2

B) 1/5+1-1/3=

13/15

C) 3×1/10^2 +5×1/2=

3×1/100+5/2=

3/100+5/2=

253/100

D)36 -(-7)^2×3^2+1/3=

36-[(-7)×3]^2+1/3=

36-[-21]^2+1/3=

36-441+1/3=

-405+1/3=

-1214/3