91Ó°ÊÓ

Write the opposite of the polynomial. $$2.4 m-5.1 n$$

Factor out the greatest common factor. $$6 z^{4}-12 z^{3}$$

Simplify the expression. $$(4 x y)^{3}$$

Factor out the greatest common factor. $$12 z^{5}-6 z^{3}+3 z^{2}$$

For Exercises \(33-48,\) convert to scientific notation. $$4920$$

Subtract the polynomials. $$\left(-19 a^{5}-6 a^{3}+2 a^{2}+7\right)-\left(4 a^{5}+2 a^{3}+6 a^{2}-3\right)$$

Explain why FOIL will not work when you multiply \((y+7)\left(y^{2}-3 y+1\right)\).

Simplify. Write the answer with positive exponents only. $$\frac{b^{2}}{c^{-5}}$$

Simplify. Write the answer with positive exponents only. $$\frac{m^{-1} n^{7}}{p^{-3}}$$

Simplify the expression. $$\left(-10 w^{2} z^{3}\right)^{3}$$