SOLUTION: {{{4sqrt(81x^4y^16z^28)}}} Simplify the expression and Check your answer by raising it back to the 4th power

Algebra ->  Square-cubic-other-roots -> SOLUTION: {{{4sqrt(81x^4y^16z^28)}}} Simplify the expression and Check your answer by raising it back to the 4th power      Log On


   

Question 1089670: 4sqrt%2881x%5E4y%5E16z%5E28%29
Simplify the expression and Check your answer by raising it back to the 4th power
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
4sqrt%2881x%5E4y%5E16z%5E28%29
Assume they mean the 4th root of this expression
4sqrt%283%5E4x%5E4y%5E4%5E4z%5E4%5E7%29
extract the 4th root of each
3%2Ax%2Ay%5E4%2Az%5E7
:
;
Check your answer by raising it back to the 4th power
%283%2Ax%2Ay%5E4%2Az%5E7%29%5E4 = 81%2Ax%5E4%2Ay%5E16%2Az%5E28