Hoặc
Tính (43+√3−4√3−1)⋅2−2√3
(43+√3−4√3−1)⋅2−2√3=[(22)3+√3−(22)√3−1]⋅2−2√3
=(26+2√3−22√3−2)⋅2−2√3=26+2√3−2√3−22√3−2−2√3=26−2−2=64−122=64−14=2554.