Cho \( \Large C =\dfrac{{{{(x + 5)}^2} + {{(x - 5)}^2}}}{{{x^2} + 25}}

Cho \( \Large C =\dfrac{{{{(x + 5)}^2} + {{(x - 5)}^2}}}{{{x^2} + 25}}\) và \( \Large D =\dfrac{{{{(2x + 5)}^2} + {{(5x - 2)}^2}}}{{{x^2} + 1}}\).

Tìm mối quan hệ giữa \(\Large C\) và \(\Large D\).

• A. \(\Large D=14C+1\)
• B. \(\Large D=14C\)
• C. \(\Large D=14C-1\)
• D. \(\Large D=14C-2\)