Find a natural number whose square diminished by 84 is equal to thrice of 8 more than the given number
Let the natural number = x
It is given that when the square of x is diminished by 84 then it is equal to thrice of 8 more than x
x = 12, – 9
We can’t take – 9 because it is given that x is a natural number.
Hence x = 12 is the required natural number.