Question

_{giup mik voi}

Answer 1

1:

1: =2căn 3-3căn 3+4căn 3=3căn 3

2: =(3căn 5+2căn 5-4căn 5)/căn 5=1

3: =6căn 3-4/3*căn 3-4*căn 3-5/3*căn 3

=-căn 3

4: =(2căn 7-2căn 14+căn 7)*căn 7+14căn 2

=21

5:

\(=\left(3\sqrt{5}-2\sqrt{3}\right)\left(3\sqrt{5}+2\sqrt{3}\right)=45-12=33\)

6: \(=\left(6\sqrt{5}-5\sqrt{5}-3\sqrt{5}\right)\cdot\sqrt{5}\)

=-2căn 5*căn 5=-10

7:

\(=\dfrac{6\cdot8\sqrt{2}-\dfrac{3}{5}\cdot5\sqrt{2}+14\sqrt{2}}{3\sqrt{2}}=16-1+\dfrac{14}{3}=15+\dfrac{14}{3}=\dfrac{59}{3}\)

8: \(=\left(8\sqrt{3}-\sqrt{3}+3\sqrt{3}\right)\cdot2\sqrt{3}\)

=60

11:

=2+căn 3-2+căn 3=2*căn 3

 

Answer 2

Em tách bài ra nha!