Question

Pls fast,i need it ..............................

Answer 1

Answer:

hints to solve each. partial answer due to lack of time, hope it helps!

Step-by-step explanation:

1)

a) solve ():

5 $\sqrt{3}$ + 7 $\sqrt{3}$ - 9 $\sqrt{3}$ - 6 $\sqrt{3}$ + 12 $\sqrt{3}$ - 10 $\sqrt{3}$ =

$\sqrt{3}$ . (5 +7-9-6+12-10)

b) use $\sqrt{6\\}$ = $\sqrt{3\\}$$\sqrt{2\\}$

c) use $\sqrt{20\\}$ = $\sqrt{4\\}$$\sqrt{5\\}$ = 2$\sqrt{5\\}$

use $\sqrt{8\\}$ = $\sqrt{4\\}$$\sqrt{2\\}$ = 2$\sqrt{2\\}$

2)

a) use $\sqrt{30\\}$ = $\sqrt{6}$$\sqrt{5}$

use $\sqrt{30\\}$ = $\sqrt{6}$$\sqrt{4}$ = 2$\sqrt{6}$