[tex]\\ \sf\Rrightarrow \left(\dfrac{1}{2}x-\dfrac{1}{3}\right)+5x^2-2x+6[/tex]
[tex]\\ \sf\Rrightarrow \left(\dfrac{x}{2}-\dfrac{1}{3}\right)+5x^2-2x+6[/tex]
[tex]\\ \sf\Rrightarrow \dfrac{3x-2}{6}+5x^2-2x+6[/tex]
[tex]\\ \sf\Rrightarrow \dfrac{3x-2+30x^2-12x+36}{6}[/tex]
[tex]\\ \sf\Rrightarrow \dfrac{30x^2+3x-12x-2+36}{6}[/tex]
[tex]\\ \sf\Rrightarrow \dfrac{30x^2-9x+34}{6}[/tex]
