Question 59234
3(radical sign) -54x^15y^6
Break the radicand into two parts, one
of which is a perfect square, as follows:

=3 sqrt [(9x^14y^6)(-6x)]
The perfect square comes out of the radical
and you get:
=3(3x^7y^3) sqrt(-6x)
=9x^7y^3 sqrt(-6x)
Cheers,
Stan H.