Simplify each expression. Write answers without negative exponents. Assume all variables represent positive real numbers. (64^5/3)/(64^4/3)

Simplify each radical. Assume all variables represent positive real numbers. $\(\sqrt\)[9]{\(\sqrt\)[4]{7^3}}$

Simplify using properties of exponents.$(x^{\frac{2}{3}}{)}^3$

Perform the indicated operations. Assume all variables represent positive real numbers. 8√(2x) - √(8x) + √(72x)

Simplify each expression. Write answers without negative exponents. Assume all variables represent positive real numbers. (k^1/3)/(k^2/3)(k^-1)