1. (8x)^3*8^-4 = 8^3*x^3/8^4 = x^3/8
4. 1/(3x)^-2 = (3x)^2 = 9x^2
Now you try the others. Get rid of negative exponents by moving those terms from numerator to denominator, or vice versa.
Simplify the expression. Write your answer using only positive exponents.
Explain as well.
1. (8x)^3*8^-4
2. 2x^-5*y^-3
3. (4x^4y^-3)^-2
4. 1/(3x)^-2
2 answers
I see that Reiny already answered all the questions for you, when you posted earlier.