Simplifying the Expression (10x + 10) - (7x² + 5x - 8)
This article will guide you through the process of simplifying the algebraic expression (10x + 10) - (7x² + 5x - 8).
Understanding the Expression
The expression involves subtracting one binomial (7x² + 5x - 8) from another (10x + 10). To simplify this, we need to distribute the negative sign and then combine like terms.
Step-by-Step Simplification
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Distribute the negative sign: The negative sign in front of the second parenthesis acts as a multiplier for every term inside it.
(10x + 10) - (7x² + 5x - 8) = 10x + 10 - 7x² - 5x + 8
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Combine like terms: Identify terms with the same variable and exponent and combine their coefficients.
- x² terms: We have -7x²
- x terms: We have 10x - 5x = 5x
- Constant terms: We have 10 + 8 = 18
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Write the simplified expression:
-7x² + 5x + 18
Final Result
The simplified form of the expression (10x + 10) - (7x² + 5x - 8) is -7x² + 5x + 18.