[tex]12x \frac{x + 2}{7} \times \frac{2 \times - 1}{11} [/tex]
[tex] \frac{12(x + 2)x(2x - 1}{77} [/tex]
[tex] \frac{24x {}^{2} - 12x - 48 - 24 }{77} [/tex]
[tex] \frac{24x {}^{2} + 36 - 24}{77} [/tex]
asta e tot
