(2x+5)^2 Expand And Simplify

2 min read Jun 16, 2024
(2x+5)^2 Expand And Simplify

Expanding and Simplifying (2x + 5)²

This article will guide you through the process of expanding and simplifying the expression (2x + 5)².

Understanding the Concept

The expression (2x + 5)² represents the square of the binomial (2x + 5). This means we need to multiply the binomial by itself:

(2x + 5)² = (2x + 5)(2x + 5)

Applying the Distributive Property

We can use the distributive property (also known as FOIL - First, Outer, Inner, Last) to expand the expression:

  • First: (2x) * (2x) = 4x²
  • Outer: (2x) * (5) = 10x
  • Inner: (5) * (2x) = 10x
  • Last: (5) * (5) = 25

Combining Like Terms

Now, let's combine the like terms:

4x² + 10x + 10x + 25 = 4x² + 20x + 25

Final Result

Therefore, the expanded and simplified form of (2x + 5)² is 4x² + 20x + 25.

Key Points to Remember:

  • Squaring a binomial means multiplying it by itself.
  • Use the distributive property (or FOIL) to expand the expression.
  • Combine like terms to simplify the result.

By following these steps, you can confidently expand and simplify expressions involving squares of binomials.

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