ACCUPLACER Elementary Algebra

ACCUPLACER Elementary Algebra focuses on assessing and enhancing foundational algebra skills essential for success in higher-level mathematics.

Basic Concepts

Simplifying Algebraic Expressions

What is an Algebraic Expression?

An algebraic expression is a combination of numbers, variables, and operations (like \( 3x + 2y - 5 \)).

How to Simplify

  • Combine Like Terms: Add or subtract terms with the same variable and exponent.
  • Use the Distributive Property: Multiply a number across terms inside parentheses, like \( a(b + c) = ab + ac \).
  • Remove Parentheses: Apply the distributive property and simplify.

Why Simplify?

Simplifying makes expressions easier to understand and solve, which is helpful in math, science, and even coding.

Real-Life Connection

Simplifying helps you organize and reduce complex information, much like tidying up your room!

Examples

  • Simplify \( 2x + 3x = 5x \).

  • Expand and simplify \( 2(y + 4) = 2y + 8 \).

In a Nutshell

Combine like terms and use properties to make algebraic expressions as simple as possible.

Key Terms

Like Terms
Terms that have identical variable parts.
Distributive Property
A property used to multiply a single term across a sum or difference inside parentheses.