Expressions vs Equations

Front

What is the difference between an expression and an equation?

Back

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

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change, represented by a number.

Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that represents an unknown number.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression.

Front

What is an algebraic expression?

Back

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

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes only numbers and operations, without variables.

Front

What does it mean for an expression to be simplified?

Back

Simplifying an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

What are like terms in an expression?

Back

Like terms are terms that have the same variable raised to the same power, allowing them to be combined.

Front

What is the role of parentheses in algebraic expressions?

Back

Parentheses indicate which operations should be performed first in an expression.

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 operations.