Convert Mathtype formula (MS-Word) to LaTeX How import in Wikipedia articles?

Question

I have same these formulas:

I need import in my Wikipedia article.

First I have convert these to Latex:

Returns:

Are:

(12.4)

\[{\min _x}\quad \sum\limits_{i = 1}^N {\frac{{{{\left( {{P_i} - {P_0} + \beta {{\log }_{10}}{d_i}} \right)}^2}}}{{\sigma _i^2}}} \]

and

(14.4)

\(A = \begin{array}{*{20}{l}}{\left[ {\begin{array}{*{20}{l}}{ + 1}&0&0&0\\{ - 1}&0&0&0\\0&{ + 1}&0&0\\0&{ - 1}&0&0\\0&0&{ + 1}&0\\0&0&{ - 1}&0\\0&0&0&{ + 1}\\0&0&0&{ - 1}\end{array}} \right]}&{b = \begin{array}{*{20}{l}}{{P_{0L}}}\\{ - {P_{0H}}}\\{{\beta _L}}\\{ - {\beta _H}}\\{{x_L}}\\{ - xH}\\{yL}\\{ - yH}\end{array}}\end{array}\)

Now I can't import in my Wikipedia article which views same as above original formulas.

When I import under edit link of a section then press save changes (put the above LaTeX within <math> and </math> tags, it remain complicated LaTeX format!

Excuse me, My original language is not English.

When Importing the (12.4) formula, converted automatically, then I have bounded within <math> and </math>

Any helps are appreciated.