Expert: Lynn Houston - 4/15/2010

Question
I don't understand these problems, Write each of the using only positive exponents.
x^2 divide y^-3, x^3y^5, x^2y^4z^4, x^2 divide y^1/2, x^2y^3t^-4z^-6w, please help me understand these problem thank you

Answer
The simple rule to make an exponent positive is to move it to the other side of the line.  Every number can be written as a fraction by putting it over one, so if the negative exponent is above the line, move it below and if it's below, move it above and make it positive.

x^2/y^-3 = x^2y^3

x^3y^5 (there are no negative exponents here)

x^2y^4z^4 same

x^2/y^1/2 same

x^2y^3t^-4z^-6w = x^2y^3 /t^4z^6w