Question

Tinh: (2+ \(\sqrt{3}\)).(2 - \(\sqrt{3}\))

Answer 1

\(\left(2+\sqrt{3}\right)\left(2-\sqrt{3}\right)=2^2-\left(\sqrt{3}\right)^2=4-3=1\)

Answer 2

\(\left(2+\sqrt{3}\right)\left(2-\sqrt{3}\right)=2^2-\left(\sqrt{3}\right)^2=4-3=1\)

Đúng cho mình nha

Answer 3

\(\left(2+\sqrt{3}\right).\left(2-\sqrt{3}\right)=4-2\sqrt{3}+2\sqrt{3}\)\(-3=4-3=1\)

Cho mik đúng nha