Simplifying the Expression: (2x² - 6x - 5) + (-9x² + 5x - 4)
This article will guide you through the process of simplifying the given expression: (2x² - 6x - 5) + (-9x² + 5x - 4).
Understanding the Process
To simplify this expression, we'll follow these steps:
- Remove the parentheses: Since we are adding the two expressions, the parentheses don't affect the order of operations.
- Combine like terms: Identify terms with the same variable and exponent, and combine their coefficients.
Simplifying the Expression
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Removing Parentheses: (2x² - 6x - 5) + (-9x² + 5x - 4) = 2x² - 6x - 5 - 9x² + 5x - 4
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Combining Like Terms:
- x² terms: 2x² - 9x² = -7x²
- x terms: -6x + 5x = -x
- Constant terms: -5 - 4 = -9
The Simplified Expression
Putting everything together, the simplified expression is: -7x² - x - 9