Question

es de matematicas ayudaaaa:(​

Answer 1

Respuesta:

a)

$\frac{11 + 29}{2} = \frac{40}{2} = 20$

b)

3x - 10 = 11

3x = 11 + 10

x = 21/3

x = 7

c)

(5 + 3)³ = 8³ = 512

5³ + 3. 5². 3 + 3 . 5 . 3² + 3³ =

125 + 225 + 135 + 27 =

512

d)

(14-5)² = 9² = 81

14² - 2 .14 . 5 + 5²=

196 - 140 + 25 =

81