Factor out a 4 and use the difference of squares.
Give it a try. It is similar to the earlier ones we did.
hmm so whats the correct factoring? becuase heres his reasoning...
and then you do
and thats because FOIL
so the answer when you put them together is -2 which is in the 3t^2+18t+9...
i dont get that...does it make sense?
and no i DID copy it right thats why im so confused too..