Respuesta :

Answer:

j = -3, -4

Step-by-step explanation:

j^2 + 7j + 12 = 0

(j + 3)(j + 4) = 0

j = -3, -4

Answer:

j=−3 or j=−4

Step-by-step explanation:

j2+7j+12=0

Step 1: Factor left side of equation.

(j+3)(j+4)=0

Step 2: Set factors equal to 0.

j+3=0 or j+4=0

j=−3 or j=−4