Question

calcule
A-
$\sqrt{ \sqrt{81} }$
B-
${8 }^{2} - \frac{14}{7} - \sqrt{ \sqrt{16} }$
C-
${9}^{3} - \frac{100}{5} + \sqrt{ \sqrt{256} }$
D-
${2}^{3} - \frac{16}{2} - \sqrt{400}$
​

Answer 1

a)

√√81

√9

3

b)

8² -14/7 -√√16

64 -2 -√4

60

c)

9³ -100/5 +√√256

81 * 9 -20 +√16

729 -20 +4

713

d)

2³ -16/20 -√400

8 -8 +20

20