Question

Resolva as expressões numéricas
B) (-9+3)^2 + 15
C) 12 2^4 + (8.5)^2
D) (2^3)^2 - 42 - (1/2) ^2
E) (3^2)^-1 + (4^4 : 4^2)
Respondem rápido pfv

Answer 1

$B) (-9+3)^2 + 15=(-6)^2+15= 36+15= \boxed{51} \\ \\ \\ C) 12* 2^4 + (8*5)^2= 12* 16 + (40)^2= 192+1600= \boxed{1792} \\ \\ \\ D) (2^3)^2 - 42 - ( \frac{1}{2} ) ^2 = 2^6 - 42 - \frac{1}{4} = 64-42- \frac{1}{4}= 22- \frac{1}{4}= \boxed{ \frac{87}{4}} \\ \\ \\ E) (3^2)^-^1 + (4^4 : 4^2)= 3^-^2 + (4^{4-2})= \frac{1}{3^2}+4^2 = \frac{1}{9}+16= \boxed{ \frac{145}{9}}$


Até outra vez!!!!

Answer 2

B) (-9+3)^2 + 15 ==> (-6)^2 + 15 ==> 36+15 ==> 51

C) 12. 2^4 + (8.5)^2 ==> 12.16 + 40^2 ==> 192+ 1600 ==> 1792

D) (2^3)^2 - 42 - (1/2) ^2 ==> 8^2 - 42 -1 ==> 64 - 42 - 1==> 22 - 1
                                                              4                       4               4
88 - 1 ==> 87
    4             4

E) (3^2)^-1 + (4^4 : 4^2) ==> 9^-1 + 4^(4-2) ==> 1 + 4^2 
                                                                             9

1 + 16 ==> 1+144 ==> 145
9                   9               9