Question

Bài 1: Tính

(\(7\sqrt{48}\) + \(3\sqrt{27}\) - \(2\sqrt{12}\)) : \(\sqrt{3}\)

Answer 1

\(\left(7\sqrt{48}+3\sqrt{27}-2\sqrt{12}\right):\sqrt{3}\)

= \(\left(7\sqrt{16.3}+3\sqrt{9.3}-2\sqrt{4.3}\right):\sqrt{3}\)

= \(\left(28\sqrt{3}+9\sqrt{3}-4\sqrt{3}\right):\sqrt{3}\)

= \(33\sqrt{3}:\sqrt{3}\)

= \(33\)

Answer 2

\(\left(7\sqrt{48}+3\sqrt{27}-2\sqrt{12}\right):\sqrt{3}\)

\(=\left(28\sqrt{3}+9\sqrt{3}-4\sqrt{3}\right):\sqrt{3}\)

\(=33\sqrt{3}:\sqrt{3}=33\)

Bạn lấy máy tính ra mà bấm thực ra mình cũng bấm đấy :))))