\[9x(x - 1) - (3x + 4)(3x - 4) =\]
\[= 51 - 9x\]
\[9x^{2} - 9x - 9x^{2} + 16 - 51 + 9x =\]
\[= 0\]
\[0x \neq 35\]
\[нет\ корней.\]