Question

Calcule o valor das expressoes 20 - (1⁴•6 + 2³)
B) (2⁴-3•4) : 2 + 5² : 5
C) 10²:5²+5°•2²-2³
D) {6²+2•[2³+2•(3²•1³)]-2 elevado a 5}•5°
E) 55-(√9•√4+1)²+(4²+3²) : 5²- 1 elevado a 6

Answer 1

Resposta:

a) -6

b) 7

c) 0

d) 56

e) 6

Explicação passo-a-passo:

a) $20-(1^4\cdot6+2^3)$

$=20-(1\cdot6+8)$

$=20-(6+8)$

$=20-14$

$-6$

b) $(2^4-3\cdot4)\div2+5^2\div5$

$=(16-12)\div2+5$

$=4\div2+5$

$=2+5$

$=7$

c) $10^2\div5^2+5^0\cdot2^2-2^3$

$=100\div25+1\cdot4-8$

$=4+4-8$

$=0$

d) $\{6^2\cdot[2^3+2\cdot(3^2\cdot1^3)]-2^5\}\cdot5^0$

$=\{36+2\cdot[8+2\cdot9]-32\}\cdot1$

$=\{36+2\cdot[8+18]-32\}$

$=\{36+2\cdot26-32\}$

$=\{36+52-32\}$

$=56$

e) $55-(\sqrt{9}\cdot\sqrt{4}+1)^2+(4^2+3^2)\div5^2-1^6$

$=55-(3\cdot2+1)^2+(16+9)\div25-1$

$=55-7^2+25\div25-1$

$=55-49+1-1$

$=6$

Answer 2

Resposta:

a) -6

b) 7

c) 0

d) 56

e) 6

Explicação passo-a-passo: