Answer:

x= -3 x= -4

Step-by-step explanation:

X²+7x+12-0

x= 7 ±√7²-4(1)(12)/2(1)

x = 7 ±√49-48/2

x= 7 ±√1/2

x=-6/2 , -8/2

x = -3 , -4