Question

if (9)cube is subtracted from the square of a number ,the answer so obtained is 567. what is the number

Answer 1

Let the no. be x
(x^2)-(9^3)=567
x^2=567+729
x^2=1296
x=36
=>the required no. is 36.

Answer 2

x^2-9^3=567
x^2-9*9*9=567
x^2-729=567
x^2=567+729
x^2=1296
x=36