Answer:
First step
Step-by-step explanation:
Subtract the 4 to the other side making the equation
(12x+8)+4=3
12x+8=-1
12x=-9
x=-3/4
x=−2−√5 or x=−2+√5
-5x2 - 20x + 35 = 30
Answer = x=−2−√5 or x=−2+√5
add them all up together and then divide by the number of items
