2 times radical 5 or about 4.472135955
2 radical 30
Here is an example, radical 20 plus radical 5. Now radical 20 is 2(radical 5) so we can add radical 5 and 2 radical 5 and we have 3 radical 5.
-2 √5 + 3 √5 = (-2 + 3) √5 = 1 √5 = √5
5√2*5√2=5*5*√2*√2=5*5*2=25*2=50
2 times radical 5 or about 4.472135955
6 radical 2
2 radical 30
Here is an example, radical 20 plus radical 5. Now radical 20 is 2(radical 5) so we can add radical 5 and 2 radical 5 and we have 3 radical 5.
-2 √5 + 3 √5 = (-2 + 3) √5 = 1 √5 = √5
76
3root(6)+5root(2) you really answered it yourself!
2√20 - 3√7 - 2√5 + 4√63 = 2√(4 x 5) - 3√7 - 2√5 + 4√(9 x 7) = 4√5 - 2√5 - 3√7 + 12√7 = 2√5 + 9√7
4√5 + 4√5 = 8√5.
5sqet(2) + sqrt(18) NB sqrt(18) = sqrt(2 x 9) = sqrt(2)Sqrt(9) = 3sqrt(2) Hence 5 sqrt(2) + 3sqrt(2) = 8sqrt(2)
(a-2(ab)1/2+b)/(a-b)
4 radical 6