Simplifying Polynomial Expressions: (x^3 - x^2 + 4) - (3x^3 - 2x^2 + 3)
This article will guide you through the process of simplifying the polynomial expression (x^3 - x^2 + 4) - (3x^3 - 2x^2 + 3).
Understanding the Problem
The expression involves subtracting two polynomials. We need to simplify it by combining like terms.
Step-by-Step Simplification
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Distribute the negative sign: The minus sign before the second set of parentheses means we multiply each term inside the second parentheses by -1.
This gives us: x^3 - x^2 + 4 - 3x^3 + 2x^2 - 3
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Identify and combine like terms:
- x^3 terms: x^3 - 3x^3 = -2x^3
- x^2 terms: -x^2 + 2x^2 = x^2
- Constant terms: 4 - 3 = 1
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Write the simplified expression: Combining the like terms gives us the final simplified expression: -2x^3 + x^2 + 1
Conclusion
Therefore, the simplified form of the expression (x^3 - x^2 + 4) - (3x^3 - 2x^2 + 3) is -2x^3 + x^2 + 1.