i
6√5 + 2√5 - 7 = 8√5 - 7, which cannot be simplified.
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
36
7 root 5
i
5 radical 7. TO see this, let X = 5*radical(7) so X2 = 52*7 = 175 and let Y = radical(13) so Y2 = 13 175 is somewhat greater than 13 hence the answer.
6√5 + 2√5 - 7 = 8√5 - 7, which cannot be simplified.
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
36
sqrt(245) = sqrt(5*7*7) = 7*sqrt(5)
76
7 root 5
You have to factor under the radical. Looks like 5^2 will do sqrt(175) sqrt(5^2*7) 5sqrt(7)
98
Overhaulin' - 2004 SEMA Radical Roaster 5-7 was released on: USA: 19 June 2008
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.