Algebraic expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

How do you evaluate an algebraic expression?

Back

To evaluate an algebraic expression, substitute the values of the variables into the expression and perform the arithmetic operations.

Front

What does it mean to simplify an algebraic expression?

Back

Simplifying an algebraic expression means to combine like terms and reduce the expression to its simplest form.

Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that represents an unknown value in an expression or equation.

Front

What is a constant in algebra?

Back

A constant is a fixed value that does not change, such as a number in an algebraic expression.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations.

Front

What does '4 less than x' mean in algebraic terms?

Back

It means to subtract 4 from x, represented as x - 4.

Front

What is the sum of two variables?

Back

The sum of two variables is the result of adding them together, represented as a + b.

Front

How do you represent multiplication in algebraic expressions?

Back

Multiplication can be represented by placing variables next to each other (xy), using a dot (x·y), or using parentheses (x(y)).