0. Review of Algebra

Simplify each expression. (9³)(9⁵)

Simplify each expression. (4²)(4⁸)

Simplify each expression. (-8t³)(2t⁶)(-5t⁴)

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. 4⁸/4⁶

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. x¹²/x⁸

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. r⁷/r¹⁰

Write each expression without negative exponents, and evaluate if possible. Assume all variables represent nonzero real numbers. (-4)^-3

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. (5x)^-2(5x³)^-3/(5^-2x^-3)^-3

Determine whether each statement is true or false. If false, correct the right side of the equation. 5^-2 = 1/5²

Perform the indicated operation, and write each answer in lowest terms. 2x/5 ∙ 10/x²

Perform the indicated operation, and write each answer in lowest terms. y³/8 ÷ y/4

Perform the indicated operation, and write each answer in lowest terms. (4/x-y) - (9/x-y)

Perform the indicated operation, and write each answer in lowest terms. 2x/5 + x/4

Find the domain of each rational expression. (x + 3) / (x - 6)

Find the domain of each rational expression. (2x - 4) / (x + 7)