Question

The Square of a natural number subtracts from its cube comes 100

Answer 1

Suare of 5 when subtracted from its cube give 100
5×5 =25
5×5×5=125

125-25 = 100

Answer 2

hello,
let the no. be x
cube of no.=x³
square of no.=x²
according to question
x³-x²=100   =   x³-x²-100=0
the solution of this equation cannot be determined by factorization
just put x=1,2,3,4,5,10,......... i.e factors of 100
when u put x=5
5³-5²-100
125-25-100
100-100
=0
hence the value of x is 5
therefore,the natural no. is 5
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