Simplifying Polynomial Expressions
In mathematics, simplifying polynomial expressions involves combining like terms to create a more concise and manageable form. Let's consider the following expression:
(-9xy^3 - 9x^4y^3) + (3xy^3 + 7y^4 - 8x^4y^4) + (3x^4y^3 + 2xy^3)
To simplify this expression, we'll follow these steps:
-
Identify Like Terms: Like terms have the same variables and exponents. In this expression, we have the following groups of like terms:
- xy^3 terms: -9xy^3, 3xy^3, 2xy^3
- x^4y^3 terms: -9x^4y^3, 3x^4y^3
- x^4y^4 terms: -8x^4y^4
- y^4 terms: 7y^4
-
Combine Like Terms: Add the coefficients of the like terms while keeping the variables and exponents the same.
- xy^3 terms: -9xy^3 + 3xy^3 + 2xy^3 = -4xy^3
- x^4y^3 terms: -9x^4y^3 + 3x^4y^3 = -6x^4y^3
- x^4y^4 terms: -8x^4y^4
- y^4 terms: 7y^4
-
Write the Simplified Expression: Combine the simplified terms in any order.
-4xy^3 - 6x^4y^3 - 8x^4y^4 + 7y^4
Therefore, the simplified form of the expression (-9xy^3 - 9x^4y^3) + (3xy^3 + 7y^4 - 8x^4y^4) + (3x^4y^3 + 2xy^3) is -4xy^3 - 6x^4y^3 - 8x^4y^4 + 7y^4.