Question

a, \(A=5\sqrt{3}-3\sqrt{48}+2\sqrt{75}-\frac{1}{3}\sqrt{108}\)

Rút gịn biểu thức

Answer 1

A= 5 căn 3 - 3*4 căn 3 +2*5 căn 3 -1/3 *6 căn 3 = căn 3

Answer 2

\(A=5\sqrt{3}-3\sqrt{48}+2\sqrt{75}-\frac{1}{3}\sqrt{108}\)

\(A=5\sqrt{3}-3.\sqrt{4^2.3}+2\sqrt{5^2.3}-\frac{1}{3}.\sqrt{6^2.3}\)

\(A=5\sqrt{3}-12\sqrt{3}+10\sqrt{3}-2\sqrt{3}\)

\(A=\sqrt{3}\)