Answer:
j= -4,6
Step-by-step explanation:
j^2 -2j -24 =0
Factor
What 2 numbers multiply to -24 and add to -2
-6*4 = -24
-6+4 = -2
(j-6) (j+4) =0
Using the zero product property
j-6 =0 j+4 =0
j =6 j=-4
