91Ó°ÊÓ

Find each product. $$ (4 a+5 b)^{2} $$

Find each product. $$ 2 m(3 m+2) $$

In each polynomial, add like terms whenever possible. Write the result in descending powers of the variable. $$ -3 m^{5}+5 m^{5} $$

Write each number in scientific notation. $$ 0.0000004 $$

Divide each polynomial by 3 \(x^{2}\) $$ 24 x^{6}-12 x^{5}+30 x^{4} $$

Write each number in scientific notation. $$ -25,000,000,000 $$

Write each number in scientific notation. $$ -0.01234 $$

Write each number without exponents. $$ 8.8 \times 10^{6} $$

For each polynomial, first simplify, if possible, and write it in descending powers of the variable. Then give the degree of the resulting pobnomial and tell whether it is a monomial, a binomial, a trinomial, or none of these. $$ 6 x^{4}-9 x $$

Write each number without exponents. $$ 8.56 \times 10^{0} $$