Question

find the cube root of each the following

Answer 1

We can find the cube roots by estimation.
cube root of 9261 must end with 1
20³=8000
22³=10648

21³ must be lies between 8000 and10648

Hence ³√9261=21


cube root of 2197 must end with 3
10³=1000
15³=3375

13³ must be lies between 1000and 3375

Hence ³√2197=13

Hope helped! ^^

Answer 2

a. 9261
3×3×3×7×7×7
means 3×7
through prime factarisation
b. 2197
13×13×13
means 13
through prime factarisation