Posted by Nancy on .
SIMPLIFY: 3√(63x^5/(72y^6))
Example to enter answer: n√b, enter (b)^(1/n) Example: For 4√3:2, enter 4(2)^(1/3).What is my answer and how do i answer it?

Algebra 2 
Reiny,
3√(63x^5/(72y^6))
=3√9 √7 x^2 √x/(√36 √2 y^3)
= 9x^2√(7x) / (6√2 y^3)
= 3x^2 √(7x) / (2√2y^3)
they might now multiply top and bottom by √2 to rationalize the denominator to get
3x^2√(14x) / (4y^3)
check my work, I should have written it down first.