Assuming you meant the x2 as x squared, then:
(11x+4)(11x-4)
Let's see what to do buddy...
____________________________
Reminder:

So we need to just Multiply above equations like this :




____________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Answer:
your answer will be 2
Step-by-step explanation:
19-17=2