Question

http://prntscr.com/hhx455

Answer 1

@Vocaloid

Answer 2

sqrt60 + sqrt8?

Answer 3

square roots cannot be separated like that

you want to try and factor out perfect squares

for example, you could re-write 68 as 4 * 17 so sqrt(68) = sqrt(17*4) = sqrt(4) * sqrt(17) and then simplify the perfect squares

Answer 4

2 x 4.12?

Answer 5

you can leave sqrt(17) as it is ^^ so 2sqrt(17) should be a sufficient answer

Answer 6

like this?
http://prntscr.com/hhx6k1

Answer 7

the 2 needs to be in front, not part of the radical

so 2 * sqrt(17)

Answer 8

yup that's it