(-x^2+3x)-(5x+2x^2)

2 min read Jun 16, 2024
(-x^2+3x)-(5x+2x^2)

Simplifying Algebraic Expressions: (-x^2 + 3x) - (5x + 2x^2)

This article will guide you through simplifying the algebraic expression (-x^2 + 3x) - (5x + 2x^2).

Understanding the Expression

The expression consists of two binomials enclosed in parentheses:

  • (-x^2 + 3x): This binomial contains a term with x squared and a term with x.
  • (5x + 2x^2): This binomial also contains a term with x squared and a term with x.

The minus sign between the parentheses indicates subtraction.

Simplifying the Expression

To simplify the expression, we need to follow these steps:

  1. Distribute the negative sign: The minus sign in front of the second parentheses indicates that we need to multiply each term inside the second parentheses by -1. This gives us:

    (-x^2 + 3x) + (-1)(5x + 2x^2) = (-x^2 + 3x) - 5x - 2x^2

  2. Combine like terms: Identify terms with the same variable and exponent.

    • x² terms: -x² - 2x² = -3x²
    • x terms: 3x - 5x = -2x
  3. Write the simplified expression: Combine the simplified terms.

    -3x² - 2x

The Simplified Expression

Therefore, the simplified form of the expression (-x^2 + 3x) - (5x + 2x^2) is -3x² - 2x.

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