Question

gente me ajude.....
simplifique e efetue;
___ ____
1) \/ 8 + \/ 98 =


2) ____ _____
\/ 45 + \/ 20 =


3) ____ _____ ____
\/ 28 - \/ 10 + \/ 7 =

____ _____ _____
4) \/ 28 - \/ 10 - \/ 7 =

___ ____
5) \/ 28 - 10 \/ 7 =

___ ____ ____
6) \/ 3 + \/ 75 - \/ 12 =

____ _____
7) \/ 75 - \/ 12

Answer 1

1) \/ 8 + \/ 98 = 2V2 + 7V2 ==> 9V2


2) ____ _____
\/ 45 + \/ 20 =   3V5 + 2V5 ==> 5V5


3) ____ _____ ____
\/ 28 - \/ 10 + \/ 7 =    2V7 + V7 - V10 ==> 3V7 - V10

____ _____ _____
4) \/ 28 - \/ 10 - \/ 7 = 2V7 - V7 - V10 ==> V7 - V10

___ ____
5) \/ 28 - 10 \/ 7 =  2V7 - 10V7 ==> -  8V7 

___ ____ ____
6) \/ 3 + \/ 75 - \/ 12 = V3 + 5V3 - 2V3 ==> 4V3

____ _____
7) \/ 75 - \/ 12 =  + 5V3 - 2V3 ==> 3V3