Step-by-step explanation:
11x²-56x+48=0
11x²(-12x-44x)+48=0
11x²-12x-44x+48=0
x(11x-12)-4(11x-12)=0
(x-4)(11x-12)=0
x-4=0
x=-4
11x-12=0
x=12/11
x=4,12/11
