Question

how to find cube root quick

Answer 1

by taking dividing by prime factorisation method

Answer 2

Answer:

Method : 4 ( Cube of any number).

Step 1 : Split the number as like i.e 7 – 28 or 72 – 8. ...

Step 3 : Cube of 1st part c = 8 x 8 x 8 = 512. ...

Step 4 : 3 bc + 51= (3 x 9 x 512) +51= 13824 + 51 = 13875 . ...

Step 5 : 3 b² c +13875= (3 x 9 x 9 x 512) +1387= 124416 + 1387 = 125803 .