SOLUTION: I need help please. Simplify 4√(16x^4y^5)^4√(243y^7) assuming the variables represent non-negative numbers? I got 4√243y^7*y^5*16x^4 = 4√3*3*3*3*

Algebra ->  Radicals -> SOLUTION: I need help please. Simplify 4√(16x^4y^5)^4√(243y^7) assuming the variables represent non-negative numbers? I got 4√243y^7*y^5*16x^4 = 4√3*3*3*3*      Log On


   

Question 768393: I need help please.
Simplify 4√(16x^4y^5)^4√(243y^7) assuming the variables represent non-negative numbers?
I got 4√243y^7*y^5*16x^4 = 4√3*3*3*3*3*2*2*2*2*y^4*y^4*y^4*x^4 = 6y^3x 4√3 but that's wrong. Answer Options:
A. 6xy^3
B. 2xy 4√y3 4√3y 4√y^3
C. 6x^2y^2 4√3
D. 6 4√3xy^3
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify 4√(16x^4y^5)^4√(243y^7) assuming the variables represent non-negative numbers?
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If you mean
root%284%2C16x%5E4y%5E5%29%2Aroot%284%2C243y%5E7%29
= root%284%2C3%2A16%2A81x%5E4y%5E12%29
= 6xy%5E3%2Aroot%284%2C3%29
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That doesn't match A - D.
Look at how I entered the problem.
root(4,16x^4y^5)*root(4,243y^7) inside 3 {}
Don't make up your own notations.