Answer:
30
Step-by-step explanation:
(12 X 2=24)( 24 - 54 = -30) + 60 = 30
[tex]12x^2-54x+60\\ \\ 6(2x^2-9x+10)\\ \\ 6(2x^2-4x-5x+10)\\ \\ 6(2x(x-2)-5(x-2))\\ \\ 6(2x-5)(x-2)[/tex]
