Simplifying Algebraic Expressions: (4x^2 - 5x + 6) + (9x^2 - 2x) - (11x - 3)
This article will guide you through the process of simplifying the given algebraic expression: (4x^2 - 5x + 6) + (9x^2 - 2x) - (11x - 3).
Understanding the Expression
The expression involves addition and subtraction of three different polynomials:
- (4x^2 - 5x + 6): A trinomial with terms involving x², x, and a constant.
- (9x² - 2x): A binomial with terms involving x² and x.
- (11x - 3): A binomial with terms involving x and a constant.
Simplifying the Expression
To simplify the expression, we'll follow these steps:
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Remove the parentheses: Since we are adding and subtracting, the parentheses don't affect the order of operations. We can simply remove them:
4x^2 - 5x + 6 + 9x^2 - 2x - 11x + 3
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Combine like terms: Identify terms with the same variable and exponent. For example, 4x² and 9x² are like terms, and -5x, -2x, and -11x are like terms.
(4x² + 9x²) + (-5x - 2x - 11x) + (6 + 3)
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Simplify by combining the coefficients:
13x² - 18x + 9
Final Result
The simplified form of the expression (4x^2 - 5x + 6) + (9x^2 - 2x) - (11x - 3) is 13x² - 18x + 9.