What is an algebraic expression? Answer: An algebraic expression is a mathematical phrase that includes numbers and/or variables.

What is the difference between an equation and an expression? Answer: An equation consists of an equal sign, and expresses the equality between two mathematical expressions. An expression is a mathematical phrase that does not contain an equal sign.

What is a variable? Answer: A variable is a letter, such as x or y, which can take on different values within a given problem.

What are rational numbers? Answer: Rational numbers are numbers that can be written as a ratio of two integers (a fraction).

How do you solve an algebraic equation? Answer: To solve an algebraic equation, you need to isolate the variable on one side of the equation and determine its numerical value.

What is a polynomial? Answer: A polynomial is an expression consisting of variables and coefficients that can be multiplied together and added together in a finite number of terms.

How do you add and subtract polynomials? Answer: To add and subtract polynomials, you need to first arrange the terms in the same order, and then add or subtract the coefficients of like terms.

What is the distributive property? Answer: The distributive property states that for any two numbers a and b, a ( b + c ) = a b + a c.

How do you solve a system of equations? Answer: To solve a system of equations, you need to solve both equations for the same variable, and then substitute the value of the variable in one equation into the other equation.

What is the difference between a linear equation and a quadratic equation? Answer: A linear equation is an equation with one variable whose highest exponent is 1, while a quadratic equation is an equation with one variable whose highest exponent is 2.