What is the Degree of a Monomial - Algebra I

The degree of a monomial is the sum of the exponents of its variables. The degree of a non-zero constant is 0. Zero has no degree.

A monomial is a real number, a variable, or a product of a real number and one or more variables with whole-number exponents.

Examples:
5x has a degree of 1. 5x = 5x^1 so the exponent is 1
6x^2y^3 has a degree of 5. The exponents are 2 and 3. Their sum is 5.
4 has a degree of 0. 4 = 4x^0. The degree of a nonzero constant is zero.

What is the Degree of a Monomial - Algebra I

Variables and Expressions - Algebra I

In this video you will learn about variables and expressions. A variable is a lower case letter that is used to represent an unknown value in mathematics. An expressions is a mathematical statement which consists of variables and numeric operations. An expression can only be simplified and not solved unless the value of a variable is given to you. This is the first topic in our algebra unit and outlines the basics of algebraic expressions and equations.

Variables and Expressions - Algebra 1

7th Grade Math - Area of Rectangle

In order to find the area of a rectangle, you simply multiply the length times the width. When it comes to seventh grade math however, we use expressions for the measurement rather than simple numbers. The formula stays the same. Once you have multiplied the length by the width, you substitute the value of the variable and calculate your final perimeter. Watch the following video for a more detailed explanation.

How to Find Area of Rectangle - 7th Grade Math

Equations and Expressions

Introduction

In this lesson, we will learn the difference between Equations ans Expressions. Before we begin with examples for each, let's go over the definitions of these terms:

Key Terms

• Expression uses variables, numbers, and operations to express a value in algebra
• Equation shows that two Expressions are equal using the "=" sign

Equations vs. Expressions

Equations and Expressions-both are used algebra.
The difference between Equations and Expressions is that Equations show equalities and inequalities while  Expressions do NOT have a value for the variables. Therefore, Expressions can NOT be solved, only simplified.