Question

find the principal roots indicated: \[\sqrt{121x^6y^4}\]

Answer 1

\[\sqrt{121x^6y^4}\]

Answer 2

Do you know that 121 = 11 x 11?
And x^6=(x^3)(x^3)
And y^4=(y^2)(y^2) ?

Answer 3

yes

Answer 4

Well then, what is:
\[\sqrt{121}\]

Answer 5

11

Answer 6

What is
\[\sqrt{x^6}\]

Answer 7

oh,,, x^3 why is it always so easy when you say it???

Answer 8

Don't know.