# Find x : {eq}- 65 + (100x/\sqrt{1000^2 + x^2}) = 0 {/eq}.

## Question:

Find x :

{eq}- 65 + (100x/\sqrt{1000^2 + x^2}) = 0 {/eq}.

In mathematics, the equation in which the variable's highest power is two and has two roots is described as the quadratic equation. {eq}{x^2} + ax + c = 0 {/eq} is the example of a quadratic equation where x is the variable, and a, c is the constant.

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The given equation is:

{eq}\begin{align*} - 65 + \left( {\dfrac{{100x}}{{\sqrt {{{10}^6} + {x^2}} }}} \right) &= 0\\ \dfrac{{100x}}{{\sqrt...