91Ó°ÊÓ

Factor out the greatest common factor. $$24 m^{4} n^{2}+36 m^{3} n-48 m^{2} n^{3}$$

Simplify. Write the answer with positive exponents only. $$\frac{2}{x^{-2} y^{-3}}$$

Simplify. Write the answers with positive exponents only. $$p^{-8} p^{3}$$

Evaluate the polynomial for the given values of the variable. \(x^{2}+x+2\) a. for \(x=-10\) b. for \(x=\frac{2}{5}\)

Simplify. Write the answers with positive exponents only. $$\frac{x^{5}}{x^{-7}}$$

For Exercises \(49-64\), convert to standard form. $$9.001 \times 10^{8}$$

Simplify. Write the answers with positive exponents only. $$\left(p^{4}\right)^{-5}$$

For Exercises \(65-72\), write the mass of the planet in scientific notation if it is not already in scientific notation. (TABLE CAN'T COPY) $$\text { Saturn } \quad 586.5 \times 10^{24}$$

Perform the indicated operations. $$\left(-5 a^{2}-9 a^{3}+10 a^{4}\right)+\left(2 a^{3}-a^{4}\right)-\left(8 a+4 a^{3}+10 a^{4}\right)$$

Simplify. Write the answers with positive exponents only. $$\frac{2^{3}}{2^{-2}}$$