Posted by Monica on Monday, August 4, 2014 at 6:37pm.
(2x^4)^2
y

Math  Damon, Monday, August 4, 2014 at 6:44pm
Again I will assume you mean:
(2x^4)^2 / y
2 *2 = + 4
x^4 * x^4 = x^8
so
4 x^8 / y
which is the same as
4 x^8 y^1 
Math  Damon, Monday, August 4, 2014 at 6:47pm
Here is a link to instructions:
http://www.mathsisfun.com/algebra/variablesexponentsmultiply.html 
Math  Damon, Monday, August 4, 2014 at 6:50pm
Then to raise one power to another see:
http://mathsfirst.massey.ac.nz/Algebra/Exponents/IntegerExp/RaisePower.htm 
Math  Monica, Monday, August 4, 2014 at 6:50pm
I am doing polynomials, is that the same

Math  Damon, Monday, August 4, 2014 at 6:52pm
yes :)

Math  Damon, Monday, August 4, 2014 at 6:56pm
although a polynomial normally has more than one term
for example
x^2 + 2 x + y + y^3 ......... 
Math  Monica, Monday, August 4, 2014 at 6:56pm
Thank you :)

Math  Damon, Monday, August 4, 2014 at 7:00pm
You are welcome
poly means more than one or many in general