Simplifying Polynomial Expressions
In algebra, simplifying polynomial expressions involves combining like terms to produce a more compact and manageable form. Let's work through an example:
The Expression:
(5x³y²−3xy+2) + (2x³y²−3x²y² +4xy−7)
Step-by-Step Breakdown:
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Identify like terms: Like terms have the same variables raised to the same powers. In this expression, we have:
- x³y² terms: 5x³y² and 2x³y²
- xy terms: -3xy and 4xy
- Constant terms: 2 and -7
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Combine like terms: Add the coefficients of the like terms:
- (5 + 2)x³y² = 7x³y²
- (-3 + 4)xy = xy
- 2 - 7 = -5
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Write the simplified expression: Combine the results:
Simplified Expression: 7x³y² - 3x²y² + xy - 5
Key Takeaway: Simplifying polynomial expressions involves identifying and combining like terms. This process makes it easier to analyze and manipulate expressions in further algebraic operations.