Question

Find the smallest number that must be subtracted
from 400 to make it a perfect cube.
Full explanation also please​

Answer 1

Answer:

we subtract 57 from 400 to get perfect square.

Step-by-step explanation:

find the cube by dividing

$3 \sqrt{400}$

400 lies in 7³&8³

but closed near to 7³

hence the cube of 7=343(7*7*7)

subtract 343from 400 we get 57

therefore

57 subtract from the 400 to get the perfect square.

{400-57=343}

343=7³

hope this will helps you