Answer:
[tex]6x {}^{2} - 24x = - 24[/tex]
[tex]x {}^{2} - 4 \times = - 4[/tex]
[tex] {x}^{2} - 4 \times + 4 = 0 [/tex]
[tex](x - 2) {}^{2} = 0[/tex]
[tex]x - 2 = 0[/tex]
[tex]x = 2[/tex]
