Factor out a 4 and use the difference of squares.
Give it a try. It is similar to the earlier ones we did.
i dont know what to do after that...
so your solution should look like Where c is some constant. Remember that you should be able to multiply it all back out and it should look like the original.
mmkay the other one... 27t^2+18t+9 my teacher said its (x-1)(3x+1)...
Which is a bit different than the one we started with.
?? so hes wrong??
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..
How did the negative sign appear randomly?
which can't be factored.