Find a natural number whose square diminshed by 84 is equal to thrice of 8 more than the given number
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let that number be x
then ,
x^2-84=3x+8
x^2=3x+92
x^2-3x-92
-b ± √b^2 -4ac/2a
3±√9+368/2
3±√377/2
then ,
x^2-84=3x+8
x^2=3x+92
x^2-3x-92
-b ± √b^2 -4ac/2a
3±√9+368/2
3±√377/2
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