Question

qual a simplificação das expressões numéricas
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

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