Question

aduceti la o forma mai simpla
(2-$\sqrt{3} ) ^{2}$

Answer 1

$2^{2} + 2 * 2 *(- \sqrt{3}) + \sqrt{3 ^{2} } \\ 4 -4 \sqrt{3}+3 \\ 7-4 \sqrt{3}$

Answer 2

(a-b)²=a²-2ab+b²
(2-√3)²=
=2²-2×2×√3+(√3)²
=4-4√3+3
=7-4√3

(2-√3)²= 7- 4√3