Question

42) Calcule o valor das expressões.

A) 7² - 10 + (2³ - 5)

B) 2⁵ - (16 : 2 + 3²)

C) [100 - (5² - 3²)] : 2

D) 7 + [ 5² : (10 - 5) + 2³ × 2]

E) 50 - 2 × [8 + (10 - 3²) - 3]

F) 2 × [(6 + 7 × √9) : 3² + (21 - 5 × √4)]

Answer 1

A) 7² - 10 + (2³ - 5)
49-10+8-5
39+3
42

B) 2⁵ - (16 : 2 + 3²)
32-8+9
33


C) [100 - (5² - 3²)] : 2
100-(25-9)/2
(100-16)2
84/2
42

D) 7 + [ 5² : (10 - 5) + 2³ × 2]
7+25/5+8x2
7+5+16
28

E) 50 - 2 × [8 + (10 - 3²) - 3]
50-2x[8+(10-9)-3
50-2x1-3
50-2-3
45

F) 2 × [(6 + 7 × √9) : 3² + (21 - 5 × √4)]
2x[(6+7x3)/9+(21-5x2)
2x[6+21)/9+(21-10)
2x27/9+11
2x3+11
6+11
17