(-2-sqrt3) (-2+sqrt3) simplfy
(−2−√3)(−2+√3)
=−((√3+2)(√3−2))
=−((√3)2−22)
=−(3−4)
Do the last bit yourself. It's easy, trust me
(-2-sqrt3) (-2+sqrt3)
What is your problem with this question?
Just expand it like this
−2(−2+√3) −√3(−2+√3)
Post your answer or just the next step if you want and I will tell you if it is correct. :)