Question

find ³√42768 by estimation​

Answer 1

Answer:

The unit's digit of 13824 is 4, so 4 is the unit's digit of the cube root....[Since, 4

3

=64].

Now, grouping the three digits from the right, the number left is 13.

We know, 2

3

=8<13<27=3

3

.

⇒ 2 is the ten's digit of the cube root of 13824.

Then, 24 is the cube root of 13824.

∴ −24 is the cube root of −13824.

Answer 2

Answer:

24 is the answer hope it helps you