algebra help plz!!!!!!!!!!!!!!

(2√45 x √15)/(-4√6)
= (2√675)/(-4√6)
= (2/-4)(√675/√6)
= (-1/2)(√225/√3)
= (-√225)/(2√3)
= -15/(2√3)

2*3*√15 x √15
____________

-4√6


6*15 -√6
___ X __
-4√6 -√6


-90√6
____
24

-15√6/4

is this a fraction? because i don't believe you can have a negative number in front of the radical. if it isn't, then the expression above the line comes to be 30 rad3. sorry my computer won't allow me to do the radical sign!

2*sqrt 45*15/4sqrt 6
first remark 45=3*15 so sqrt 3*15*15 =15 sqrt3
Numerator= 30sqrt 3
Denominator= -4sqrt3*sqrt2
N/D dividing by sqrt 3
30/-4sqrt2