If (x+5) is a factor the equation will equal zero when x=-5 so
3(-5^2)+14(-5)+k=0
75-70+k=0
5+k=0
k=-5
Answer:
x= 3 +
, 3 -
Step-by-step explanation:
You use the quadratic formula to get x= 
Then you simplify and get the answers x= 3 +
, 3 -
It is 14 because 8= 6to-2 and 3to-3is 6 so both together is 14
hope this helps
Neutral atoms must have equal numbers of protons and electrons
Solution: 18 electrons