` B(x) = 0 `
` => \frac{3}{2(x + 5)} - \frac{7}{x-2} = 0 `
` => 7[2(x + 5)] = 3(x - 2) `
` => 7[2x + 10] = 3x - 6 `
` => 14x + 70 = 3x - 6 `
` => 3x - 14x = 70 + 6 `
` => -11x = 76 `
` => x = \frac{-76}{11} `
` C(x) = 0 `
` => x^{2} - 7x + 6 = 0 `
` => x^{2} - x - 6x + 6 = 0 `
` => x(x - 1) - 6(x - 1) = 0 `
` => (x - 6)(x - 1) = 0 `
` => ` \(\left[ \begin{array}{l}x-6=0\\x-1=0\end{array} \right.\)
` => ` \(\left[ \begin{array}{l}x=6\\x=1\end{array} \right.\)
