Question

please answer question​

Answer 1

Step-by-step explanation:

rt means root

1)5rt3+8rt3

5 + 8 rt3

13rt3

5rt3 + 8rt3 = 13rt3

2) 9rt5 - 4rt5 + rt125

9rt5 - 4rt5 + 5rt5

9 - 4 +5 rt 5

10rt 5

9rt5 - 4rt5 + rt 125 = 10 rt 5

3) 7rt48 - rt 27 -rt3

28 rt 3 - 3 rt 3 - rt3

28 - 3 - 1 rt 3

24 rt 3

7rt48 - rt27 -rt3 = 24 rt 3

4) rt7 - 3/5 rt 7 +2 rt 7

rt 7 - 3/5 rt 7 + 2 rt7

1 - 3/5 + 2 rt 7

1- 13/5 rt 7

5-13/5 rt7

-8/5 rt 7

rt7 -3/5rt7 + 2 rt7 = -8/5 rt 7