Given:
[tex]g=b(a+D^2)[/tex]
From the above expression, the variable 'a' can be represented as,
[tex]\begin{gathered} g=b(a+D^2) \\ \frac{g}{b}=(a+D^2) \\ a+D^2=\frac{g}{b} \\ a=\frac{g}{b}-D^2 \end{gathered}[/tex]
Thus, the above expression represents the expression of variable 'a'.
