Lesson 4-2Simplifying Algebraic Expressions

1. Identify the terms, like terms, coefficients, and constants.

mn + 4m + 6n + 2mn

2. Simplify the expression.3x + 4x + 5y + 6

3. Simplify the expression. 5a - 2 – 3a + 7

Do Now

Term – each part of an algebraic expression separated by addition or subtraction signs◦ Example: 3x, 7, x, 2

Like terms – terms that contain the same variables◦ Example: 3x and x, 7 and 2

Coefficient – the numerical part of a term that contains a variable◦ Example: 3 and 1

Constant – a term without a variable◦ Example: 7 and 2

Parts of Algebraic Expressions

Simplifying Expressions with Parentheses

Simplifying Expressions Practice

Simplifying Expressions Practice

Applying Algebraic ExpressionsWrite an expression in simplestform for the perimeter of the rectangle.

Write an expression in simplest form for the perimeter of each rectangle

1.

Applying Algebraic Expressions Practice

Writing and Simplifying Algebraic Expressions

For each situation write an expression in simplest form that represents the total amount.1. You used p minutes one month on your cell phone. The

next month you used 75 fewer minutes.

2. Mateo has y pairs of shoes. His brother has 5 fewer pairs.

Writing and Simplifying Algebraic Expressions Practice