Question

how to simplify:
3√6x * 2√15x
I don't know how to simplify it any further but there must be a way because I have to choose between:
54x√10

8x^2√10

18x√10

18√10x^2

(sorry if i don't answer right away - i have to run up the street, but i thought i would go ahead and ask and see what you guys say when i get back. ill try to figure out the answer, i just need help figuring out how to get there)

Answer 1

is that x under the sq root?
and u can multiply 6 and 15 under the bracket u will get sq root 90
which u can also write as sq root (10*9)
that can become 3sqroot(10)

Answer 2

yeah, it's all under the square root. for some reason, i forgot to just multiply! i thought i would just simplify both and i didn't have to. thanks for your help, i got 18√10x for my answer