91Ó°ÊÓ

Write each expression without using exponents. $$(-2 y)^{4}$$

Find each product. $$(2 b-1)(3 b+4)$$

Distance to Venus The distance from Venus to the Sun is approximately \(6.7 \times 10^{7} .\) Write this number in standard notation.

Length of one meter One meter is approximately 0.00622 mile. Write this number in scientific notation.

Perform each division. If there is a remainder, leave the answer in quotient \(+\frac{\text { remainder }}{\text { divisor }}\) form. Assume no division by \(0 .\) $$\frac{x^{3}+3 x^{2}+3 x+1}{x+1}$$

Simplify each expression. $$(2 x-3)(x+1)-5 x(x+2)$$

Simplify. $$a^{3} a^{4} a^{5}$$

Find each product. $$(a+3)^{2}$$

Simplify each expression and write the result without using parentheses or negative exponents. Assume no variable base is 0. $$3^{-4} \cdot 3^{5} \cdot 3^{-3}$$

Simplify each expression and write the result without using parentheses or negative exponents. Assume no variable base is 0. $$\frac{5^{-2} \cdot 5^{-4}}{5^{-6}}$$