Question

30. Calcule

A) 2² + √81 : 9

B) 2³ + √100 : 5 - 3²

C) 2 × ( √1 × 5 - √16)

D) 8² : ( 6 × 2 - √100)

E) 12 × [ 9² - ( √64 + 7 × 10) ]

F) 2³ : 4 + 3 × [ √25 - ( 3 - 2) ] - 7

Answer 1

a)22+√81:9
r=31.04986181877

b)r=1.0249688279

c)2×(√1+5-√16)=2

d)82:(6×2-√100)=164

não sei se tá certo