## Simplifying Algebraic Expressions: (d² - d + 5) - (2d + 5)

This article will guide you through the process of simplifying the algebraic expression **(d² - d + 5) - (2d + 5)** and putting it in standard form.

### Understanding the Steps

**Distribute the negative sign:**The minus sign in front of the parentheses means we multiply each term inside the second set of parentheses by -1.**Combine like terms:**Identify terms with the same variable and exponent, then add or subtract their coefficients.**Arrange in standard form:**Write the terms in descending order of their exponents, starting with the highest exponent.

### Simplifying the Expression

Let's break down the simplification step by step:

**Distribute the negative sign:**`(d² - d + 5) - (2d + 5) = d² - d + 5 - 2d - 5`

**Combine like terms:**`d² - d - 2d + 5 - 5 = d² - 3d`

**Standard form:**The expression is already in standard form since it is arranged in descending order of exponents.

### Final Answer

Therefore, the simplified form of **(d² - d + 5) - (2d + 5)** in standard form is **d² - 3d**.